Constant of Proportionality from Tables
Constant of Proportionality from Graphs
Constant of Proportionality from Words
Constant of Proportionality and Equations
Ratio Tables
100
Drew paints portraits. Find the constant of proportionality if it is a proportional relationship
Time (in hours) = x Number of portraits = y
1 5
2 10
3 15
4 20
5 portraits per hour
100
Find the constant of proportionality with correct units
k =46 miles per hour
100
Jenny bought 24 batteries packed in 6 equal packs. What is the unit rate per pack?
4 batteries per pack
100
What is k mean in y=kx?
constant of proportionality
100
Nikisha is driving at a speed of 60 miles per hour. How far will he go in 5 hours?
300 miles
200
The table shows the amount earned by Harry for selling ice cream. Find k.
Cups Sold = x 3 5 7 9
Earnings ($) = y 12 20 28 36
CoP = 4
200
Find the constant of proportionality with correct units
60 miles per hour
200
To make juice, Henry combines 4 liters of water and 12 scoops of juice mix. What is the CoP (scoops per liter)?
3 scoops per liter
200
Find the constant of proportionality:
C = 2/3 m
k = 2/3
200
Xhoanna is driving at a speed of 60 miles per hour. How many hours did she drive if she went 270 miles?
4.5 hours
300
Fred wrote notes during an exam. Find the CoP (with correct units) if it is a proportional relationship.
Notes (pages) 8 9 10 11
Time (in hours) 18 19 20 21
It is not proportional, there is no CoP.
300
Find the constant of proportionality with correct units
5 gallons per min
300
Padraic's time machine needs 14 megawatts of electricity to travel back 7 years. What is the unit rate (megawatts per year)?
2 megawatts per year
300
Are 12/20 and 3/10 proportional?
No they are not.
300
7 servings of strawberries is 315 calories. How many calories is 1 serving? 2 servings? 3 servings?
1 serving is 45 calories
2 servings is 90 calories
3 servings is 135 calories
400
A ferry transports bikes to an island. Write k (which is the CoP).
Number of bikes (x) 10 12 14
Number of trips (y) 5 6 7
k = 0.5
400
Find k with proper units.
k = 3 gallons per minute
400
Write an equation to convert feet to inches. There are 12 inches in 1 foot. Use "x" to represent feet, and "y" to represent inches.
Hint: y = ? x
y = 12x
400
Solve for x. x/2 = 9/6
What is 3?
400
7 servings of strawberries is 315 calories. How many servings is 180 calories? 630 calories?
180 calories is 4 servings
630 is 14 servings
500
Alice bought comics. Find the k (CoP with correct units) if the table shows a proportional relationship.
Number of comics 2 4 6
Price (dollars) 5 10 15
k = 2.5 dollars per comic
500
DAILY DOUBLE
What is K with proper units?
DAILY DOUBLE
k = 1.2 miles per hour
500
Violet brought 5 pounds of cans to a recycling place and was paid $2. Find the constant of proportionality (cost per pound)
$0.40/pound
500
Write an equation that represents the following scenario. Use "d" to represent distance, and "t" to represent time.
Mitchell rides his bike at a speed of 3.5 miles per hour.
d = 3.5t
500
Sadie texts 60 words in 4 minutes, then she texts 45 words in how many minutes?
What is 3 minutes?