WGUC957 Applied Algebra Learning
Checks 2025
The price of gasoline is $2.50 per gallon. The cost, C, can be represented by the
function C(n)=2.5n, where n is the number of gallons of gasoline.
What is the inverse function?
A. The inverse function gives the number of gallons of gasoline as a function of the
cost when the price of gasoline varies.
B. The inverse function gives the cost as a function of the number of gallons of
gasoline, when the price of gasoline is $2.50 per gallon.
C. The inverse function gives the number of gallons of gasoline as a function of the
cost when the price of gasoline is $2.50 per gallon.
D. The inverse function gives the price of gasoline as a function of the number of
gallons of gasoline.
C
Apples are on sale for $1.65 per pound at the grocery store. The equation c=1.65p
gives the cost c for apples in terms of the weight p (in pounds).
Write this equation so it gives the weight p in terms of the cost c.
A. p=1.65c
B. p=c−1.65
C. 1.65p=c
D. p=c/1.65
D
, You are an IT manager with six people on your team. Each team member works 40
guaranteed hours a week. If a new software tool or platform is rolled out, more help is
needed for customer support, and your team members may work a few hours of
overtime.
Which of the following choices listed is a variable?
A. Providing customer support
B. The number of overtime hours
C. Forty guaranteed hours of work
D. Six team members
B
You work in IT on many different platforms (PC, Mac, Linux, etc.) with different types
of software and tools. One of your friends also works in IT. She is the administrator of
a college learning management system.
Which choice is a qualitative variable?
A. The fact that your friend and you both work in IT
B. The number of platforms you work on in one day
C. Your job title
D. The platform you work on for any given project
The number of law enforcement officers has increased in a neighborhood. People later
notice that the number of crimes has decreased.
Which variable is the independent variable in this context?
A. The number of crimes
Checks 2025
The price of gasoline is $2.50 per gallon. The cost, C, can be represented by the
function C(n)=2.5n, where n is the number of gallons of gasoline.
What is the inverse function?
A. The inverse function gives the number of gallons of gasoline as a function of the
cost when the price of gasoline varies.
B. The inverse function gives the cost as a function of the number of gallons of
gasoline, when the price of gasoline is $2.50 per gallon.
C. The inverse function gives the number of gallons of gasoline as a function of the
cost when the price of gasoline is $2.50 per gallon.
D. The inverse function gives the price of gasoline as a function of the number of
gallons of gasoline.
C
Apples are on sale for $1.65 per pound at the grocery store. The equation c=1.65p
gives the cost c for apples in terms of the weight p (in pounds).
Write this equation so it gives the weight p in terms of the cost c.
A. p=1.65c
B. p=c−1.65
C. 1.65p=c
D. p=c/1.65
D
, You are an IT manager with six people on your team. Each team member works 40
guaranteed hours a week. If a new software tool or platform is rolled out, more help is
needed for customer support, and your team members may work a few hours of
overtime.
Which of the following choices listed is a variable?
A. Providing customer support
B. The number of overtime hours
C. Forty guaranteed hours of work
D. Six team members
B
You work in IT on many different platforms (PC, Mac, Linux, etc.) with different types
of software and tools. One of your friends also works in IT. She is the administrator of
a college learning management system.
Which choice is a qualitative variable?
A. The fact that your friend and you both work in IT
B. The number of platforms you work on in one day
C. Your job title
D. The platform you work on for any given project
The number of law enforcement officers has increased in a neighborhood. People later
notice that the number of crimes has decreased.
Which variable is the independent variable in this context?
A. The number of crimes
