WGU C957 Applied Algebra ( questions and answers with detailed verified solutions)

Asymptote - ANSa horizontal, vertical, or slanted line that a graph approaches but never touches coefficient of determination - ANSA 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 - ANSThe 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 - ANSOccurs when the numeric relationship between two quantities- that is, how many times one number contains the second- remains unchanged over time Data regression - ANSThe 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 - ANSA mathematical sentence that contains an equals sign. explanatory variable - ANSA 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 - ANSA mathematical notation indicating the number of times a quantity is multiplied by itself. exponential function - ANSa function of the form f(x) = ab^x, where a and b are real numbers with a ≠ 0, b0, and b ≠ 1 extrapolation - ANSthe act of estimation by projecting known information f(x)=mx+b - ANSlinear function