Vocabulary
Is it Proportional?
Constant of Proportionality
Equation
Problem Solving
100
If a graph goes through the origin and is a straight line it is considered...
proportional
100
Is it proportional? 
Yes
100
What is the constant of proportionality in the following:
y=4.5x
4.5
100
Write the equation for the following: 
y=0.2x
100
Four movie tickets cost $30.
Five concert tickets cost $36.50.
Find the unit rate for a movie ticket and the unit rate for a concert ticket
Movie: $7.50 / 1 ticket
Concert: $7.30 / 1 ticket
200
What is the Equation that represents a proportional relationship?
Y=K(X)
200
Does the graph show a proportional relationship?
No
200
What is the constant of proportionality in the following:
y=7x
7
200
The points (14,7) and (1.5, 0.75) are on the graph of a proportion. What is the equation?
y=0.5x
200
Using the following, how many cookies can be made with 7 cups of flour? 
131 (131.25)
300
This represents the amount of something "per one" of something else
unit rate
300
Is it proportional? 
No
300
What is the constant of proportionality in the following:
5
300
Write the equation for the following:
c = 2p
or
y=2x
300
Marco needs to buy some cat food. At the nearest store, 3 bags cost $15.75. How much would Marco spend on 5 bags of cat food?
$26.25
400
This tells you how many times bigger one shape is than another
scale factor
400
Does the table show a proportional relationship? 
Yes
400
The points (2,4) and (3,6) are on the graph of a proportional relationship. What is the constant of proportionality?
k=2
400
The following points are on the graph of a line. What is the equation?
(15,60) (19,76) (23,92)
y=4x
400
A box of cereal states that there are 90 calories in a
3/4
cup serving. How many calories are there in 4 cups of cereal?
480 calories
500
The constant of proportionality can also be called the....
Slope
Scale Factor
Unit Rate
500
Does the equation y=3x+5 show a proportional relationship?
No
500
Name the constant of proportionality. 
k=4/3
500
If a city has an area of 10 square miles its population is 50,000 people. The relationship is proportional
Write an equation to represent the situation.
y=5,000x
500
A recipe calls for 15 oz of flour for every 8 oz of milk. If you use 15 oz of milk, how much flour should you use?
28 1/8 oz