C957 Applied Algebra Exam 2026
Questions and Answers Graded A+
asymptote - Correct answer-A horizontal, vertical, or slanted line on a graph that a
curve approaches but never touches.
average rate of change - Correct answer-The average rate at which one variable is
changing in relation to another variable's changing.
big-box stores - Correct answer-A very large store, typically over 50,000 square
feet, of plain design, resembling a large box.
broadband - Correct answer-High-speed Internet access that is always on and much
faster than dial-up.
calculate the average rate of change - Correct answer-The formula to compute an
average rate of change is (y2-y1) divided by (x2-x1).
coefficient of determination - Correct answer-A statistic that measures how well a
regression predictions approximate the real data points. An r^2 of 1 indicates that
the regression prediction is a perfect fit for the data.
, common era - Correct answer-A designation previously called "A.D.," meaning
annus domini, "year of the Lord"; the Common Era dates year 1 as the presumed
year of Jesus of Nazareth's birth.
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 - Correct answer-A collection of facts, which might be numbers, words,
measurements, observations or simply descriptions.
data regression - Correct 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.
dependent variable - Correct answer-A variable that is changed by another variable
(called the independent variable); for example, when a person is purchasing gas,
the cost (the dependent variable) rises as more gas is pumped into a car's tank (the
independent variable).
Questions and Answers Graded A+
asymptote - Correct answer-A horizontal, vertical, or slanted line on a graph that a
curve approaches but never touches.
average rate of change - Correct answer-The average rate at which one variable is
changing in relation to another variable's changing.
big-box stores - Correct answer-A very large store, typically over 50,000 square
feet, of plain design, resembling a large box.
broadband - Correct answer-High-speed Internet access that is always on and much
faster than dial-up.
calculate the average rate of change - Correct answer-The formula to compute an
average rate of change is (y2-y1) divided by (x2-x1).
coefficient of determination - Correct answer-A statistic that measures how well a
regression predictions approximate the real data points. An r^2 of 1 indicates that
the regression prediction is a perfect fit for the data.
, common era - Correct answer-A designation previously called "A.D.," meaning
annus domini, "year of the Lord"; the Common Era dates year 1 as the presumed
year of Jesus of Nazareth's birth.
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 - Correct answer-A collection of facts, which might be numbers, words,
measurements, observations or simply descriptions.
data regression - Correct 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.
dependent variable - Correct answer-A variable that is changed by another variable
(called the independent variable); for example, when a person is purchasing gas,
the cost (the dependent variable) rises as more gas is pumped into a car's tank (the
independent variable).
