WGU C957 APPLIED ALGEBRA FXO2 OA
UPDATED ACTUAL EXAM QUESTIONS AND
CORRECT ANSWERS
●● average rate of change
Answer: The average rate at which one variable is changing in relation
to another variable's changing.
●● big-box stores
Answer: A very large store, typically over 50,000 square feet, of plain
design, resembling a large box.
●● broadband
Answer: High-speed Internet access that is always on and much faster
than dial-up.
●● calculate the average rate of change
Answer: The formula to compute an average rate of change is (y2-y1)
divided by (x2-x1).
●● coefficient of determination
,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
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
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
Answer: A collection of facts, which might be numbers, words,
measurements, observations or simply descriptions.
●● 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.
●● dependent variable
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).
●● equations
Answer: A mathematical statement that two things are equal; it consists
of two expressions, one on each side of an equals sign.
●● exponent
Answer: A mathematical notation - a superscript - that defines the
number of times a number is multiplied by itself.
●● exponential function
Answer: A function that has an extremely rapid increase or decrease in
quantity in proportion to its current value; its form is f(x) = b^2.
●● extrapolation
UPDATED ACTUAL EXAM QUESTIONS AND
CORRECT ANSWERS
●● average rate of change
Answer: The average rate at which one variable is changing in relation
to another variable's changing.
●● big-box stores
Answer: A very large store, typically over 50,000 square feet, of plain
design, resembling a large box.
●● broadband
Answer: High-speed Internet access that is always on and much faster
than dial-up.
●● calculate the average rate of change
Answer: The formula to compute an average rate of change is (y2-y1)
divided by (x2-x1).
●● coefficient of determination
,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
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
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
Answer: A collection of facts, which might be numbers, words,
measurements, observations or simply descriptions.
●● 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.
●● dependent variable
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).
●● equations
Answer: A mathematical statement that two things are equal; it consists
of two expressions, one on each side of an equals sign.
●● exponent
Answer: A mathematical notation - a superscript - that defines the
number of times a number is multiplied by itself.
●● exponential function
Answer: A function that has an extremely rapid increase or decrease in
quantity in proportion to its current value; its form is f(x) = b^2.
●● extrapolation
