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WGU C957 APPLIED ALGEBRA OA EXAM
QUESTIONS AND ANSWERS 2025
Asymptote - correct answer- a horizontal, vertical, or slanted
line that a graph approaches but never touches
coefficient of determination - correct answer- 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
common ratio - correct answer- 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...]
Constant ratio - correct answer- Occurs when the numeric
relationship between two quantities- that is, how many times
one number contains the second- remains unchanged over
time
Data regression - correct answer- The process of examining
data points to determine a valid equation. "Regression" refers
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to bringing different data points down toward a normal average-
"regressing" them
equation - correct answer- A mathematical sentence that
contains an equals sign.
explanatory variable - correct answer- 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)
exponent - correct answer- A mathematical notation indicating
the number of times a quantity is multiplied by itself.
exponential function - correct answer- a function of the form f(x)
= ab^x, where a and b are real numbers with a ≠ 0, b>0, and b
≠1
extrapolation - correct answer- the act of estimation by
projecting known information
WGU C957 APPLIED ALGEBRA OA EXAM
QUESTIONS AND ANSWERS 2025
Asymptote - correct answer- a horizontal, vertical, or slanted
line that a graph approaches but never touches
coefficient of determination - correct answer- 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
common ratio - correct answer- 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...]
Constant ratio - correct answer- Occurs when the numeric
relationship between two quantities- that is, how many times
one number contains the second- remains unchanged over
time
Data regression - correct answer- The process of examining
data points to determine a valid equation. "Regression" refers
, 2 | Page
to bringing different data points down toward a normal average-
"regressing" them
equation - correct answer- A mathematical sentence that
contains an equals sign.
explanatory variable - correct answer- 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)
exponent - correct answer- A mathematical notation indicating
the number of times a quantity is multiplied by itself.
exponential function - correct answer- a function of the form f(x)
= ab^x, where a and b are real numbers with a ≠ 0, b>0, and b
≠1
extrapolation - correct answer- the act of estimation by
projecting known information
