WGU C957 Applied Algebra - Brandy Questions with
Answers (100% Correct Answers)
Asymptote Answer: a horizontal, vertical, or slanted line that a graph
approaches but never touches
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
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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
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