Proportional Tables
Proportional Graphs
Proportional Word Problems
Find the unit rate
Proportion Word Problems
100
Is this table proportional? If so, what is the Constant of Proportionality?
Yes, it is proportional. My C.O.P is 10.
100
This graph shows the relationship between what two variables? What do the x values stand for and what do the y values stand for?
Hours (x) and miles walked (y)
100
I go to the story and buy meat for $8.99 a pound. Is this a proportional relationship? Why or why not?
Yes it is proportional because $8.99 per pound is a unit price. (Cost for 1 pound)
100
You buy 5 bananas for $10.
$2 per banana
100
One jar of crushed ginger costs $2. How many jars can you buy for $4?
2 jars
200
Is this table proportional? If so, what is the C.O.P? How do you know?
No, this relationship is NOT proportional. There is no constant rate of change between my x and y variables.
200
Is this graph proportional? Why or why not?
No, it is NOT proportional. It does not pass through (0,0) and (0,0) would not be a part of this graph. It passes through (0,1).
Another reason: There is not constant rate of change. My y/x value for one point is 1 and 3/4 for the other point showing there is not constant rate of change.
200
Jodie rides her scooter 12 miles in 3 hours. Later she rides her scooter 20 miles in 5 hours. Are these distances and times proportional? Show work.
Yes, both have a unit rate of 4 miles per hour.
200
What is another name for Constant of Proportionality?
rate, unit rate
200
One package of blueberries costs $3. How many packages of blueberries can you buy for $9?
3
300
Is this table proportional? If so, what is the C.O.P? 
Yes, it is proportional and the C.O.P is 7.
300
Is this graph proportional? List TWO reasons why it is or is not proportional.
1. It is a straight line
2. (0,0) is a part of the graph
300
Cassidy drove at a constant rate. It took Cassidy 2 hours to drive 100 miles. How far would she drive in 1 hour? How do you know?
Cassidy is driving at a constant rate so I can use my proportionality equation. Cassidy would drive 50 miles in one hour. I know this because y (100) divided by x (2) equals 50.
300
5 puppies cost $620. Determine the cost per puppy.
$124
300
Jenny was planning a trip to the United Arab Emirates. Before going, she did some research and learned that the exchange rate is 4 Dirhams for every $1. How many Dirhams would she get if she exchanged $5?
20
400
Is this table proportional? If so, what is the C.O.P? How do you know?
Yes, it is proportional and the C.O.P is 13 apples per tree.
400
Is this graph proportional? If so what is my C.O.P?
C.O.P= 1/2
400
13 candy bars weigh 26 ounces. What is the weight of 35 candy bars?
35 candy bars weigh 70 ounces
400
3.5 pounds of cheese costs $12. Determine the cost per pound
$3.43
400
Castel bought four bunches of fennel for $9. How many bunches of fennel can Mofor buy if he has $18?
8
500
This table is proportional. Find the C.O.P.
The C.O.P is 0.6.
500
What is the constant of Proportionality?
2/3 laps per minute or 0.67 laps per minute
500
A car travels 120 miles in 3 hours (with a constant speed). How long will it take to travel 200 miles?
It will take 5 hours to travel 200 miles because my rate of change is 40 miles per hour.
500
4.7 kgs of coffee costs $42.99. Determine the cost per kg.
11
500
The money used in Jordan is called the Dinar. The exchange rate is $3 to 2 Dinars. Find how many dollars you would receive if you exchanged 22 Dinars.
$33