WGU C957 PRE-ASSESSMENT: APPLIED
ALGEBRA PRACTICE EXAMINATION 2026
QUESTIONS WITH ANSWERS GRADED A+
◍ function notation.
Answer: f(input) = output or f(x) = y
◍ response variable.
Answer: A variable that is changed by another variable (called the
explanatory variable); for example, when a person is purchasing gas, the
cost (the response variable) rises as more gas is pumped into a cars tank (the
explanatory variable).
◍ ratio.
Answer: a comparison of two quantities
◍ parsimony principle.
Answer: use the simplest model for a given context
◍ 0.0-0.3.
Answer: r^2-value showing a weak correlation
◍ temperature conversion.
Answer: C(F) = (F-32)/1.8F(C) = 1.8C + 32
◍ Interpolation.
Answer: A method of inserting new data points in the range of a known set
of data points
◍ least-squares regression algorithm.
Answer: used to find the best-fit line for the scatterplot
◍ linear regression.
Answer: an algorithm to find a precise line of fit for a set of data
, ◍ increasing logistic function.
Answer: the first part of the graph will be concave up, the second concave
down
◍ decrease.
Answer: general effect of outliers on the coefficient of determination
◍ solving the equation.
Answer: finding the associated x-value to a given y-value
◍ limiting factors.
Answer: Asymptotes
◍ Logistic Function.
Answer: What equation is this?
◍ correlation coefficient.
Answer: measures how closely the data values in a scatterplot follow the
path of a straight line
◍ inflection point.
Answer: a point where the concavity changes
◍ Global Maximum.
Answer: Finds the highest y-number the function goes to
◍ when polynomials do not work.
Answer: forecasting the future; they are best for modeling data that has
several ups and downs (or turns), but once past all the turns, they sometimes
lose their power in modeling
◍ degree 3 polynomial.
Answer: can handle 2 turns in the data
◍ Global minimum.
Answer: Finds the lowest y-number the function goes to
◍ Logistic function.
Answer: A function that produces an s-shaped curve and contains two
ALGEBRA PRACTICE EXAMINATION 2026
QUESTIONS WITH ANSWERS GRADED A+
◍ function notation.
Answer: f(input) = output or f(x) = y
◍ response variable.
Answer: A variable that is changed by another variable (called the
explanatory variable); for example, when a person is purchasing gas, the
cost (the response variable) rises as more gas is pumped into a cars tank (the
explanatory variable).
◍ ratio.
Answer: a comparison of two quantities
◍ parsimony principle.
Answer: use the simplest model for a given context
◍ 0.0-0.3.
Answer: r^2-value showing a weak correlation
◍ temperature conversion.
Answer: C(F) = (F-32)/1.8F(C) = 1.8C + 32
◍ Interpolation.
Answer: A method of inserting new data points in the range of a known set
of data points
◍ least-squares regression algorithm.
Answer: used to find the best-fit line for the scatterplot
◍ linear regression.
Answer: an algorithm to find a precise line of fit for a set of data
, ◍ increasing logistic function.
Answer: the first part of the graph will be concave up, the second concave
down
◍ decrease.
Answer: general effect of outliers on the coefficient of determination
◍ solving the equation.
Answer: finding the associated x-value to a given y-value
◍ limiting factors.
Answer: Asymptotes
◍ Logistic Function.
Answer: What equation is this?
◍ correlation coefficient.
Answer: measures how closely the data values in a scatterplot follow the
path of a straight line
◍ inflection point.
Answer: a point where the concavity changes
◍ Global Maximum.
Answer: Finds the highest y-number the function goes to
◍ when polynomials do not work.
Answer: forecasting the future; they are best for modeling data that has
several ups and downs (or turns), but once past all the turns, they sometimes
lose their power in modeling
◍ degree 3 polynomial.
Answer: can handle 2 turns in the data
◍ Global minimum.
Answer: Finds the lowest y-number the function goes to
◍ Logistic function.
Answer: A function that produces an s-shaped curve and contains two
