Constant of Proportionality K=Y/X

Look at the image.

• A

• B

• C

• D

The cost of 3 pounds of grapes is $6.57. What is the constant of proportionality that relates the cost in dollars, y, to the number of pounds of grapes, x?

• A

• B

• C

• D

What is the constant of proportionality that relates fuel in gallons used to the distance in miles?

• A

• B

• C

• D

How many cups of flour Dana needs to make 1 dozen cookies?

• 0.80 cups

• 0.75 cups

• 0.85 cups

• 0.70 cups

• 11.75

• 10.00

• 12.75

• 11.00

Which equation describes the relationship between, the number of circles, and t, the number of triangles?

• c = 4 t

• t = 4 c

• c = 1/4 t

• t = 1/4 c

Randall earns money fixing computers. Is the relationship between the amount Randall earns and the number of days a proportional relationship?

• Yes, the constant rate of change is $ 350 per day

• No,the constant rate of change is $ 350 per day

• Yes,the constant rate of change is $175 per day

• No, the constant rate of change is $175 per day

• .06

• 48

• 3

• 16

An artist is making a scale model of a statue. On the model 2 inches represent 1 foot on the actual statue. Which graph best represents this relationship?

• A

• B

• C

• D

Which equation best represents the rate at which Jordan saves?

• a = 45 w

• a = 9 w

• w = 9 a

• w = 9 w