Definitions
A quantity which during a calculation is assumed to vary or be capable of varying in value
What is a variable?
Identify the variable in the expression 24 – x
x
Identify the constant in the expression 24 – x
24
The cost of parking in the parking garage is $2.00 for
each hour. Write an equation in terms of P and h that shows the total cost for
parking, P, for h hours
P=2h
The amount or number of a material or immaterial thing not usually estimated by spatial measurement.
What is a quantity?
Identify the variable in x+y=10
x AND y
Identify the constant in x+y=10
10
The cost of parking in the parking garage is $2.00 for
each hour. How much will it cost to park for 5 hours?
$10.00
A statement that the values of two mathematical expressions are equal
What is an equation?
Identify the variables in the expression 1/2bh=A
b and h
Identify the constant in the expression 1/2bh=A
1/2
The cost of parking in the parking garage is $2.00 for the first hour, and $2.00 for
each hour after that. Write an equation in terms of P and h that shows the total cost for
parking, P, for h hours
P=$2.00 +$1.00(h-1)
A description of the connection between the elements of two sets
What is a relationship?
What is the variable in the following word problem? The cost of parking in the parking garage is $2.00 for the first hour and $1.00 for every hour after that.
hours
What is the constant in the following word problem? The cost of parking in the parking garage is $2.00 for the first hour and $1.00 for every hour after that.
$2.00
The cost of parking in the parking garage is $2.00 for the first hour and $1.00 for
every hour after that. Write an equation in terms of 𝑥𝑥 and 𝑦𝑦 that shows the total cost for
parking, 𝑦𝑦, for 𝑥𝑥 hours. Use the equation to calculate the cost for parking in the garage for 5 hours
$6.00