WGU C957 APPLIED ALGEBRA OA EXAM 2024 | ACTUAL
REAL EXAM QUESTIONS AND ANSWERS WITH A
PRACTICE EXAM TEST BANK AND STUDY GUIDE |
VERIFIED AND ACCURATE FOR GUARANTEED PASS |
GRADED A | ALL LEARNING CHECKS INCLUDED
The following graph shows the profits of a company for the last fiscal year. Approximatelyhow
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 much have the company's profits increased over the last year? - CORRECT ANSWER 30%
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j 6 j 6 j6
Black Monday occurred on October 19, 1987, and represents the single largest decline of the Dow
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 Jones average in history.The function f represents a seven-month period during which Black
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 Monday occurred. The function value f(1) represents the Dow Jones average in June of 1987. Which
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 function value represents the Dow Jones average during the month when Black Monday occurred?
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 - CORRECT ANSWER f(5)
j 6 j 6 j6
The unemployment rate in Poland for the time period from 1990 to 2012 is shown in the graph
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 below using the function U( t) (measured as a percentage), where t is the year. For example,
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 U(1990) is the unemployment rate for the year 1990. What can be concluded based on this graph? -
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j 6 CORRECT ANSWER The largest two-year increase in unemployment was from 1990 to 1992.
j 6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
The graph of the function C below represents the number of coal miners in the United States from
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 1985 to 2015.C( y) represents the number of coal miners in the United States in the year y. For
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 example, C(1985) shows there were 170,000 coal miners in the United States in 1985. Which
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 interpretation of the function C is accurate? - CORRECT ANSWER C(2000) represents 70,000
j6 j6 j6 j6 j6 j6 j6 j 6 j 6 j6 j6 j6
j6 coal miners in 2000.
j6 j6 j6
The following table compares the number of employees hired and the number of employees
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 dismissed over an 11-year period for a certain business. j6 j6 j6 j6 j6 j6 j6 j6
,Year# Hired# j6
j6 Dismissed200750102008201020093052010211720116030201270152013402020141552015206
j6 20161022017107
What can be concluded from this table? - CORRECT ANSWER More employees were hired
j6 j6 j6 j6 j6 j6 j6 j 6 j 6 j6 j6 j6 j6
j6 than dismissed each year. j6 j6 j6
A company has the following information on last quarter's sales (month 7 refers to July): MonthSales
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 (in thousands of dollars)730383289333
j6 j6 j6
What was the average rate of change over the entire quarter (from July to September)? - CORRECT
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j 6 ANSWER Sales increased an average of $15,000 per month. j6 j6 j6 j6 j6 j6 j6 j6
An IT firm generates the following numbers to estimate its revenue in thousands of dollars based on
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 the number of employees working on a project.
j6 j6 j6 j6 j6 j6 j6
EmployeesRevenue (in thousands)10$12.4020$21.9930$30.7440$36.0150$38.43 j6 j6
Which conclusion can be made by examining the average rate of change between consecutive
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 rows? - CORRECT ANSWER The revenue is increasing at slower and slower rates in relation to
j6 j 6 j 6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 the number of employees.
j6 j6 j6
An airplane was cruising at an altitude of 39,000 feet and descended as shown in the table below.
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 Descent of Airplane j6 j6
Altitude of Airplane (ft.)Time j6 j6 j6
j6 (min.)39,000033,0001027,0002021,0003015,000409,000503,00060
What can be concluded from this table? - CORRECT ANSWER The airplane had a descent rate
j6 j6 j6 j6 j6 j6 j6 j 6 j 6 j6 j6 j6 j6 j6 j6
j6 of 600 ft./min.
j6 j6
The function table below shows a company's revenue function (R) and expense function (E) for
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 each month. In the second row, R(1) is the revenue total for January, and E(1) is the expense total
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 for January. j6
Monthly Revenues and Expenses j6 j6 j6
Month (m)Revenues R(m)Expenses E(m)1 (Jan.)$2,000$2,2002 (Feb.)$3,220$3,9573
j6 j6 j6 j6 j6
j6 (Mar.)$2,579$2,5044 (Apr.)$4,100$1,6755 (May)$5,328$2,1226 (June)$6,745$1,9907 j6 j6 j6
,(July)$5,995$2,1118 (Aug.)$10,200$3,1839 (Sept.)$9,455$4,12910(Oct.)$12,337$92711 j6 j6 j6
j6 (Nov.)$10,234$3,78612 (Dec.)$7,195$2,199 j6
Which conclusion can be made about this function table? - CORRECT ANSWER The highest
j6 j6 j6 j6 j6 j6 j6 j6 j6 j 6 j 6 j6 j6
j6 profit occurred during October. j6 j6 j6
he original value of a company car bought in January of 2006 was $22,800. Below is a function table
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 that tracks the value of the car V( y) as it depreciates.
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
Depreciation of Company AutomobileYear (y)Value (V(y)) j6 j6 j6 j6 j6
j6 2006$22,8002007$18,2402008$15,5042009$13,1782010$11,2012011$9,5212012$8,0932013$6,
8792014$5,8472015$4,970
V(2007) = $18,240 is the value of the car from January to December of 2007. Which other
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 conclusion can be reached from this table? - CORRECT ANSWER V( y) decreases the most
j6 j6 j6 j6 j6 j6 j6 j 6 j 6 j6 j6 j6 j6 j6
j6 from 2006 to 2007. j6 j6 j6
The salvage or depreciated value, V, of a new truck purchased for $58,000 is given by the linear
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 function V( t) = 58,000 - 4,000 t, where t is the time in years between 0 and 10. What is the correct
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 interpretation of V(3)? - CORRECT ANSWER The truck's depreciated value after 3 years is j6 j6 j6 j 6 j 6 j6 j6 j6 j6 j6 j6 j6 j6
j6 $46,000.
In the function C( x) = 21.25 + 0.25 x, C( x) represents the total cost, in dollars, for a passenger to
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
ride a shuttle service for x miles. What is the total cost for a passenger to ride the shuttle for 50 miles?
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 - CORRECT ANSWER $33.75
j 6 j 6 j6
A company's total monthly cost is given by the linear function C( x) = 11,000 + 550 x , where C is the
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 total monthly cost and x is the number of units produced each month. The graph of the function is
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 given below: What does the y-intercept represent in this situation? - CORRECT ANSWER If 0
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j 6 j6 j6 j6
j6 items are produced, the monthly cost is $11,000.00.
j6 j6 j6 j6 j6 j6 j6
A cable company, a satellite dish company, and a streaming service all offer TV viewing plans
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 based on the number of channels, c, on the plan. The price of each plan is given below: Cable: P(
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
, c) = 3 c + 60Satellite dish: P( c) = 4 c + 35Streaming service: P( c) = 5 c + 50 Which company's cost
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 per additional channel is most expensive? - CORRECT ANSWER Streaming service
j6 j6 j6 j6 j6 j6 j 6 j 6 j6 j6
The number of gym memberships since January 1, 2015, for a particular gym is given by the
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 function N( x) = 100 + 11 x, where N is the number of gym members x months after January 1,
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 2015. How can the slope be interpreted? - CORRECT ANSWER Each month, 11 members join
j6 j6 j6 j6 j6 j6 j6 j 6 j 6 j6 j6 j6 j6 j6
j6 the gym. j6
The pricing models of four contractors are given below, where t is the number of hours worked and P
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 is the total cost of the job. Contractor A: P( t) = 100 + 20 tContractor B: P( t) = 99 + 25 tContractor
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 C: P( t) = 50 + 35 tContractor D: P( t) = 80 + 25 t Which contractor gives the cheapest hourly rate? -
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j 6 CORRECT ANSWER Contractor A j 6 j6 j6
An appliance manufacturer has determined that the profit, P( x), that it makes in manufacturing and
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 selling x dishwashers can be determined from the function in the graph below. How many
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 dishwashers must the company manufacture and sell in order to make a profit of $80,000? - j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 CORRECT ANSWER 130 j 6 j6
The profit function P( x) gives a company's total profit (in millions of U.S. dollars) for x products
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 produced (in thousands). The graph of P( x) is below: At which number of products produced does
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 the company stop being profitable? - CORRECT ANSWER About 4,500 items A local business
j6 j6 j6 j6 j6 j 6 j 6 j6 j6 j6 j6 j6 j6
j6 is looking to become a franchise. The company wants to predict the number of franchises, F, given
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 a certain number of years, Y. This prediction is modeled by the function F( Y). What can be
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 concluded by F(5) = 10? - CORRECT ANSWER In 5 years, there will be 10 open stores.
j6 j6 j6 j6 j6 j 6 j 6 j6 j6 j6 j6 j6 j6 j6 j6 j6
A bank begins a marketing campaign to increase its number of customers. Each month, all new
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 customers are put into a drawing. One customer then receives a $50 credit in a checking
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 account.The amount of money given away in the drawing, G, is a function of the number of j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 months, M, the drawing has been going on for. What is the correct function notation to represent
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
REAL EXAM QUESTIONS AND ANSWERS WITH A
PRACTICE EXAM TEST BANK AND STUDY GUIDE |
VERIFIED AND ACCURATE FOR GUARANTEED PASS |
GRADED A | ALL LEARNING CHECKS INCLUDED
The following graph shows the profits of a company for the last fiscal year. Approximatelyhow
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 much have the company's profits increased over the last year? - CORRECT ANSWER 30%
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j 6 j 6 j6
Black Monday occurred on October 19, 1987, and represents the single largest decline of the Dow
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 Jones average in history.The function f represents a seven-month period during which Black
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 Monday occurred. The function value f(1) represents the Dow Jones average in June of 1987. Which
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 function value represents the Dow Jones average during the month when Black Monday occurred?
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 - CORRECT ANSWER f(5)
j 6 j 6 j6
The unemployment rate in Poland for the time period from 1990 to 2012 is shown in the graph
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 below using the function U( t) (measured as a percentage), where t is the year. For example,
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 U(1990) is the unemployment rate for the year 1990. What can be concluded based on this graph? -
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j 6 CORRECT ANSWER The largest two-year increase in unemployment was from 1990 to 1992.
j 6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
The graph of the function C below represents the number of coal miners in the United States from
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 1985 to 2015.C( y) represents the number of coal miners in the United States in the year y. For
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 example, C(1985) shows there were 170,000 coal miners in the United States in 1985. Which
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 interpretation of the function C is accurate? - CORRECT ANSWER C(2000) represents 70,000
j6 j6 j6 j6 j6 j6 j6 j 6 j 6 j6 j6 j6
j6 coal miners in 2000.
j6 j6 j6
The following table compares the number of employees hired and the number of employees
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 dismissed over an 11-year period for a certain business. j6 j6 j6 j6 j6 j6 j6 j6
,Year# Hired# j6
j6 Dismissed200750102008201020093052010211720116030201270152013402020141552015206
j6 20161022017107
What can be concluded from this table? - CORRECT ANSWER More employees were hired
j6 j6 j6 j6 j6 j6 j6 j 6 j 6 j6 j6 j6 j6
j6 than dismissed each year. j6 j6 j6
A company has the following information on last quarter's sales (month 7 refers to July): MonthSales
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 (in thousands of dollars)730383289333
j6 j6 j6
What was the average rate of change over the entire quarter (from July to September)? - CORRECT
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j 6 ANSWER Sales increased an average of $15,000 per month. j6 j6 j6 j6 j6 j6 j6 j6
An IT firm generates the following numbers to estimate its revenue in thousands of dollars based on
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 the number of employees working on a project.
j6 j6 j6 j6 j6 j6 j6
EmployeesRevenue (in thousands)10$12.4020$21.9930$30.7440$36.0150$38.43 j6 j6
Which conclusion can be made by examining the average rate of change between consecutive
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 rows? - CORRECT ANSWER The revenue is increasing at slower and slower rates in relation to
j6 j 6 j 6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 the number of employees.
j6 j6 j6
An airplane was cruising at an altitude of 39,000 feet and descended as shown in the table below.
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 Descent of Airplane j6 j6
Altitude of Airplane (ft.)Time j6 j6 j6
j6 (min.)39,000033,0001027,0002021,0003015,000409,000503,00060
What can be concluded from this table? - CORRECT ANSWER The airplane had a descent rate
j6 j6 j6 j6 j6 j6 j6 j 6 j 6 j6 j6 j6 j6 j6 j6
j6 of 600 ft./min.
j6 j6
The function table below shows a company's revenue function (R) and expense function (E) for
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 each month. In the second row, R(1) is the revenue total for January, and E(1) is the expense total
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 for January. j6
Monthly Revenues and Expenses j6 j6 j6
Month (m)Revenues R(m)Expenses E(m)1 (Jan.)$2,000$2,2002 (Feb.)$3,220$3,9573
j6 j6 j6 j6 j6
j6 (Mar.)$2,579$2,5044 (Apr.)$4,100$1,6755 (May)$5,328$2,1226 (June)$6,745$1,9907 j6 j6 j6
,(July)$5,995$2,1118 (Aug.)$10,200$3,1839 (Sept.)$9,455$4,12910(Oct.)$12,337$92711 j6 j6 j6
j6 (Nov.)$10,234$3,78612 (Dec.)$7,195$2,199 j6
Which conclusion can be made about this function table? - CORRECT ANSWER The highest
j6 j6 j6 j6 j6 j6 j6 j6 j6 j 6 j 6 j6 j6
j6 profit occurred during October. j6 j6 j6
he original value of a company car bought in January of 2006 was $22,800. Below is a function table
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 that tracks the value of the car V( y) as it depreciates.
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
Depreciation of Company AutomobileYear (y)Value (V(y)) j6 j6 j6 j6 j6
j6 2006$22,8002007$18,2402008$15,5042009$13,1782010$11,2012011$9,5212012$8,0932013$6,
8792014$5,8472015$4,970
V(2007) = $18,240 is the value of the car from January to December of 2007. Which other
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 conclusion can be reached from this table? - CORRECT ANSWER V( y) decreases the most
j6 j6 j6 j6 j6 j6 j6 j 6 j 6 j6 j6 j6 j6 j6
j6 from 2006 to 2007. j6 j6 j6
The salvage or depreciated value, V, of a new truck purchased for $58,000 is given by the linear
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 function V( t) = 58,000 - 4,000 t, where t is the time in years between 0 and 10. What is the correct
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 interpretation of V(3)? - CORRECT ANSWER The truck's depreciated value after 3 years is j6 j6 j6 j 6 j 6 j6 j6 j6 j6 j6 j6 j6 j6
j6 $46,000.
In the function C( x) = 21.25 + 0.25 x, C( x) represents the total cost, in dollars, for a passenger to
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
ride a shuttle service for x miles. What is the total cost for a passenger to ride the shuttle for 50 miles?
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 - CORRECT ANSWER $33.75
j 6 j 6 j6
A company's total monthly cost is given by the linear function C( x) = 11,000 + 550 x , where C is the
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 total monthly cost and x is the number of units produced each month. The graph of the function is
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 given below: What does the y-intercept represent in this situation? - CORRECT ANSWER If 0
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j 6 j6 j6 j6
j6 items are produced, the monthly cost is $11,000.00.
j6 j6 j6 j6 j6 j6 j6
A cable company, a satellite dish company, and a streaming service all offer TV viewing plans
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 based on the number of channels, c, on the plan. The price of each plan is given below: Cable: P(
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
, c) = 3 c + 60Satellite dish: P( c) = 4 c + 35Streaming service: P( c) = 5 c + 50 Which company's cost
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 per additional channel is most expensive? - CORRECT ANSWER Streaming service
j6 j6 j6 j6 j6 j6 j 6 j 6 j6 j6
The number of gym memberships since January 1, 2015, for a particular gym is given by the
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 function N( x) = 100 + 11 x, where N is the number of gym members x months after January 1,
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 2015. How can the slope be interpreted? - CORRECT ANSWER Each month, 11 members join
j6 j6 j6 j6 j6 j6 j6 j 6 j 6 j6 j6 j6 j6 j6
j6 the gym. j6
The pricing models of four contractors are given below, where t is the number of hours worked and P
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 is the total cost of the job. Contractor A: P( t) = 100 + 20 tContractor B: P( t) = 99 + 25 tContractor
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 C: P( t) = 50 + 35 tContractor D: P( t) = 80 + 25 t Which contractor gives the cheapest hourly rate? -
j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j 6 CORRECT ANSWER Contractor A j 6 j6 j6
An appliance manufacturer has determined that the profit, P( x), that it makes in manufacturing and
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j6 selling x dishwashers can be determined from the function in the graph below. How many
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j6 dishwashers must the company manufacture and sell in order to make a profit of $80,000? - j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 CORRECT ANSWER 130 j 6 j6
The profit function P( x) gives a company's total profit (in millions of U.S. dollars) for x products
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j6 produced (in thousands). The graph of P( x) is below: At which number of products produced does
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j6 the company stop being profitable? - CORRECT ANSWER About 4,500 items A local business
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j6 is looking to become a franchise. The company wants to predict the number of franchises, F, given
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j6 a certain number of years, Y. This prediction is modeled by the function F( Y). What can be
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j6 concluded by F(5) = 10? - CORRECT ANSWER In 5 years, there will be 10 open stores.
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A bank begins a marketing campaign to increase its number of customers. Each month, all new
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j6 customers are put into a drawing. One customer then receives a $50 credit in a checking
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j6 account.The amount of money given away in the drawing, G, is a function of the number of j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6
j6 months, M, the drawing has been going on for. What is the correct function notation to represent
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