APPLIED ALGEBRA C957 WGU EXAM SCRIPT
WITH VIEW AHEAD TESTED QUESTIONS AND
DETAILED SOLUTIONS 2026.
◍ coefficient of determination. 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. 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. 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. Answer: 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
◍ equation. Answer: A mathematical sentence that contains an equals
sign.
◍ explanatory variable. 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. Answer: A mathematical notation indicating the number
of times a quantity is multiplied by itself.
◍ exponential function. 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. Answer: the act of estimation by projecting known
information
◍ f(x)=mx+b. Answer: linear function
◍ f(x) = mx. Answer: A very basic function
◍ function. Answer: A relation based on a set of inputs and a set of
possible outputs where each input is related to exactly one output
◍ function notation. Answer: a way to name a function that is defined
by an equation
◍ Global Maximum. Answer: Finds the highest y-number the
function goes to
WITH VIEW AHEAD TESTED QUESTIONS AND
DETAILED SOLUTIONS 2026.
◍ coefficient of determination. 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. 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. 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. Answer: 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
◍ equation. Answer: A mathematical sentence that contains an equals
sign.
◍ explanatory variable. 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. Answer: A mathematical notation indicating the number
of times a quantity is multiplied by itself.
◍ exponential function. 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. Answer: the act of estimation by projecting known
information
◍ f(x)=mx+b. Answer: linear function
◍ f(x) = mx. Answer: A very basic function
◍ function. Answer: A relation based on a set of inputs and a set of
possible outputs where each input is related to exactly one output
◍ function notation. Answer: a way to name a function that is defined
by an equation
◍ Global Maximum. Answer: Finds the highest y-number the
function goes to
