Tables
Graphs
Word Problems
Equations
100
Is there a proportional relationship between time (in hours) and portraits?
If so, what is the constant of proportionality in hours per portrait.
Number of portraits = x Time (in hours) = y
1 5
2 10
3 15
4 20
5 hours per portrait.
100
What is the constant of proportionality in gallons per minute?
5 (gallons per minute)
100
Morgan bought 24 batteries packed in 6 equal packs. Joshua bought 28 batteries packed in 7 equal packs.
What is the number of batteries per pack for the packs that Morgan and Joshua bought?
4 batteries per pack
100
What is the constant of proportionality: y = 7x
7
200
The table shows the amount of money earned by Harry for selling cups of ice cream. What is the constant of proportionality?
Cups Sold = x 3 5 7 9
Earnings ($) = y 12 20 28 36
4
200
What is the constant of proportionality in gallons per minute?
3 (gallons per minute)
200
Michael worked 40 hours in a week and earned $860. How much money did Michael earn per hour?
$21.50 per hour
200
The equation y = 4x shows the number of loaves of breads baked based on the amount of flour used.
What is the constant of proportionality?
4
300
Fred wrote notes during an exam.
Is there a proportional relationship between the time (in hours) and the pages of notes?
Notes (pages) (x) 11 9 10
Time (in hours) (y) 23 18 20
Not proportional.
No constant of proportionality.
300
What is the constant of proportionality in miles per hour?
60 (miles per hour)
300
Last month, Julie brought 5 pounds of cans into the shop and was paid $2.
What is the cost per pound?
$0.40 per pound
300
The number of milk bottles sold can be determined by the equation y = 0.35x, where y is the number of bottles of milk and x is the number of boxes opened.
What is the constant of proportionality?
0.35
400
A ferry transports bikes to an island. What is the constant of proportionality for the number of trips (y) to the number of bikes (x)?
Number of bikes (x) 10 12 14
Number of trips (y) 5 6 7
0.5 or 5/10 or 1/2
400
What is the constant of proportionality in miles per hour? You may leave your answer as a fraction.
6/5 or 12/10 or 1.2 (or any equivalent value)
400
ShopRite sells a 6 oz bag of popcorn for $3.96.
Costco sells a 10 oz bag of popcorn for $6.50.
What is the cost per ounce at each store?
ShopRite: $0.66 per oz.
Costco: $0.65 per oz.
400
In a laboratory, scientists performed chemical reactions. The amount of product formed by a reaction can be determined by y = 0.25x, where x is the product and y is the amount of reactants used.
What is the constant of proportionality?
0.25
500
Alice bought comics.
Is there a proportional relationship between the price (y) and comics (x)?
If so, what is the constant of proportionality?
Number of comics (x) 2 4 6
Price (dollars) (y) 6 12 16
Not proportional.
No constant of proportionality.
500
What is the constant of proportionality in miles per hour?
46 (miles per hour)
500
5 pounds of beef cost $29.
At this rate, how much would would 8 pounds of beef cost?
$46.40
500
What is the constant of proportionality: y = 2/3 x
2/3