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Constant of Proportionality

Total questions: 12

Worksheet time: 51mins

Name
Class
Date
1.

choose the best answer.

a)

k=1.6

b)

k=0.6

c)

k=3

d)

k=5

2.

It takes Jennifer 2 hours to walk 13 miles. What is the constant of proportionality that relates the number of miles, y, to the time in hours, x?

a)

6.5 miles per hour

b)

26 miles per hour

c)

0.15 miles per hour

d)

7.2 miles per hour

3.

The graph shows the number of plants that sprouted from seed packets. What is the constant of proportionaltiy that relates y to x?

a)

5

b)

10

c)

50

d)

0.10

4.

The Choir is selling brownies for a fundraiser. Five brownies to sell for $4.75. what is the constant of proportionality that related the cost in dollars, y, to the number of brownies, x?

a)

Each brownie costs $1.05

b)

Each brownie costs $0.85

c)

Each brownie costs $0.95

d)

Each brownie costs $23.75

5.

What is the constant of proportionality that relates y, the pieces of gum to the dollar amount,x?

a)

10 pieces per dollar

b)

120 pieces

c)

20 pieces per dollar

d)

$0.05 per piece

6.

What is the constant of proportionality in the equation below?

y = 2.8x

(a)  

7.

What is the constant of proportionality that relates y, the number of cups of coffee to the pounds of sugar needed, x?

a)

4

b)

20

c)

100

d)

5

8.

Choose the best answer

a)

2

b)

7

c)

3

d)

3.5

9.

The cost of 4 movie tickets is $39.00. What is the constant of proportionality that relates the cost in dollars, y, to the number of tickets, x?

(a)  

10.

What is the constant of proportionality from the equation d=65t?

(a)  

11.

It takes Jake 9 minutes to read 45 pages of a book. Use the constant of proportionality that relates the number of pages, y, to the time in minutes, x to figure out how long it will take Jake to read a 180 page book.

a)

90 minutes

b)

5 minutes

c)

20 minutes

d)

36 minutes

12.

If x is the minutes a water hose is left running and y is the number of gallons of water in the pool, what is the constant of proportionality in gallons per minute?

(a)