WGU PRE-ASSESSMENT: APPLIED ALGEBRA (FXO1) PFXO QUESTIONS AND ANSWERS

A local business is looking to become a franchise. The company wants to predictthe number of franchises, F, given a certain number of years, Y. This prediction is modeled by the function F( Y). What can be concluded by F(5) = 10? YOUR ANSWER CORRECT ANSWER Every 5 years, 10 stores will be opened. Every 10 years, 5 stores will be opened. In 5 years, there will be 10 open stores. In 10 years, there will be 5 open stores. 2. A bank begins a marketing campaign to increase its number of customers. Each month, all new customers are putinto a drawing. One customer then receives a $50 creditin a checking account. The amount of money given away in the drawing, G, is a function of the number of months, M,the drawing has been going on for. Whatis the correctfunction notation to representthe amount of money given away after the drawing has been going on for 5 months? YOUR ANSWER CORRECT ANSWER G(5) = 250 G(250) = 5 G(5) = 10 G(10) = 5 9/24/2019 WGU Student Portal | Coaching Report 3. The volume of calls, V( h), at a particular customer service center can be written as a function ofthe number of hours after opening each day, h. What would the ordered pair (6,8) representfor this function? YOUR ANSWER CORRECT ANSWER There were 8 calls 6 hours after opening. There were 6 calls 8 hours after opening. There were h calls 6 hours after opening. There were 8 calls V hours after opening. 4. A company has developed two functions, L(t) and M(t),that determine the least amount and most amount, respectively, of revenue it will make in any given month in dollars (with t = 1 corresponding to January). What can the company reasonably conclude if L(2) = 3,000 and M(2) = 5,000? YOUR ANSWER CORRECT ANSWER In February, it will make $2,000. In February, it will make between $3,000 and $5,000. It will make more money in February if it uses M( t) instead of L( t). It cannot make more than $3,000 in February but can make up to $5,000 after February. 5. A server at a restaurant has realized thattips, T, in dollars are related to the number of hours, h,that have been worked on any given day. Tips can be modeled by the function T( h) = X. How can this function be interpreted? 9/24/2019 WGU Student Portal | Coaching Report YOUR ANSWER CORRECT ANSWER YOUR ANSWER CORRECT ANSWER If the server works h hours, the tips will be $ X. If the server works T hours, the tips will be $ h. If the server works h hours, the tips will be $ T( X). If the server works X hours, the tips will be $ T. 6. A company pays its employees a base salary each month plus a commission, C, based on the number of sales, s, made by an employee during the month. An employee made 8 sales in the last month and received a commission of $1,600. How would this be represented in function notation? YOUR ANSWER CORRECT ANSWER C(8) = 1600 C(1600) = 8 s(8) = 1600 s(1600) = 8