Equation of Proportional Relationships

Write an equation for this relationship.

• y=4x

• y=1/8x

• y=1/4x

• y=8x

What is the constant of proportionality in the equation y = 14x ? 

• y

• x

• 14

What is the constant of proportionality?

• 1/3

• 3

• 6

• 1/6

What is the constant of proportionality?

• 8

• 16

• 24

• 2

Is the given table a proportional relationship? If so, write an equation that relates y to x.

• Yes;  y=1/3x

• Yes;  y=3x

• Yes;  y=5x 

• No

Which best describes the equation?
y = 75x

• Proportional

• Nonproportional

Does this equation represent a proportional relationship?

• Yes

• No

Does the table show a proportional relationship? 

• Yes, COP = 7

• Yes, COP  = 0.7

• Yes, COP = 0.14

• Yes, COP = 14/100

Does this equation represent a proportional relationship?

• Yes

• No

Is the table proportional? If so, find the constant rate of proportionality. Select all that are appropriate.

• No

• Yes

• 5

• Not Proportional