WGU C957 Applied Algebra - Brandy Questions with Verified
Answers (Correct Update)
Question 1: Asymptote
Answer: Ans-a horizontal, vertical, or slanted line that a graph approaches but never touches
Question 2: Coefficient of determination
Answer: Ans-A statistic that measures how well a regression prediction
approximates the real data points. An r^2 of 1 indicates that the regression prediction is a perfect fit
for
the data
Question 3: Common ratio
Answer: Ans-The number by which each term in a sequence is multiplied to find the next
number in the sequence; for example 4 is the common ratio for the sequence [1, 4, 16, 64, 256...]
Question 4: Constant ratio
Answer: Ans-Occurs when the numeric relationship between two quantities- that is, how many
times one number contains the second- remains unchanged over time
Question 5: Data regression
Answer: Ans-The process of examining data points to determine a valid equation.
"Regression" refers to bringing different data points down toward a normal average- "regressing"
them
Question 6: Equation
Answer: Ans-A mathematical sentence that contains an equals sign.
Question 7: Explanatory variable
Answer: Ans-A variable that, as it changes, affects another variable (called the response
variable); for example, as a person pumps more gas into a car's tank(the explanatory variable), the cost
of the purchase rises (the response variable)
Question 8: Exponent
Answer: Ans-A mathematical notation indicating the number of times a quantity is multiplied by
itself.
Page 1
, Question 9: Exponential function
Answer: Ans-a function of the form f(x) = ab^x, where a and b are real numbers with a ≠
0, b>0, and b ≠ 1
Question 10: Extrapolation
Answer: Ans-the act of estimation by projecting known information
Question 11: F(x)=mx+b
Answer: Ans-linear function
Question 12: F(x) = mx
Answer: Ans-A very basic function
Question 13: Function
Answer: Ans-A relation based on a set of inputs and a set of possible outputs where each input is
related to exactly one output
Question 14: Function notation
Answer: Ans-a way to name a function that is defined by an equation
Question 15: Global Maximum
Answer: Ans-Finds the highest y-number the function goes to
Question 16: Global minimum
Answer: Ans-Finds the lowest y-number the function goes to
Question 17: Horizontal Asymptote
Answer: Ans-a horizontal line that the curve approaches but never reaches
Question 18: Inequality
Answer: Ans-A mathematical sentence that shows the relationship between quantities that are not
equivalent
Page 2
Answers (Correct Update)
Question 1: Asymptote
Answer: Ans-a horizontal, vertical, or slanted line that a graph approaches but never touches
Question 2: Coefficient of determination
Answer: Ans-A statistic that measures how well a regression prediction
approximates the real data points. An r^2 of 1 indicates that the regression prediction is a perfect fit
for
the data
Question 3: Common ratio
Answer: Ans-The number by which each term in a sequence is multiplied to find the next
number in the sequence; for example 4 is the common ratio for the sequence [1, 4, 16, 64, 256...]
Question 4: Constant ratio
Answer: Ans-Occurs when the numeric relationship between two quantities- that is, how many
times one number contains the second- remains unchanged over time
Question 5: Data regression
Answer: Ans-The process of examining data points to determine a valid equation.
"Regression" refers to bringing different data points down toward a normal average- "regressing"
them
Question 6: Equation
Answer: Ans-A mathematical sentence that contains an equals sign.
Question 7: Explanatory variable
Answer: Ans-A variable that, as it changes, affects another variable (called the response
variable); for example, as a person pumps more gas into a car's tank(the explanatory variable), the cost
of the purchase rises (the response variable)
Question 8: Exponent
Answer: Ans-A mathematical notation indicating the number of times a quantity is multiplied by
itself.
Page 1
, Question 9: Exponential function
Answer: Ans-a function of the form f(x) = ab^x, where a and b are real numbers with a ≠
0, b>0, and b ≠ 1
Question 10: Extrapolation
Answer: Ans-the act of estimation by projecting known information
Question 11: F(x)=mx+b
Answer: Ans-linear function
Question 12: F(x) = mx
Answer: Ans-A very basic function
Question 13: Function
Answer: Ans-A relation based on a set of inputs and a set of possible outputs where each input is
related to exactly one output
Question 14: Function notation
Answer: Ans-a way to name a function that is defined by an equation
Question 15: Global Maximum
Answer: Ans-Finds the highest y-number the function goes to
Question 16: Global minimum
Answer: Ans-Finds the lowest y-number the function goes to
Question 17: Horizontal Asymptote
Answer: Ans-a horizontal line that the curve approaches but never reaches
Question 18: Inequality
Answer: Ans-A mathematical sentence that shows the relationship between quantities that are not
equivalent
Page 2
