Proportional Equations

What is the formula for a proportional relationship?

• y=kx
• y=k/x
• z=ykx
• y=ky

Does this equation represent a proportional relationship?

• Yes
• No

Does the equation show a proportional relationship?

• Yes
• No

Write an equation for this situation.

• y=9.75x
• y=19x
• y=19.25x
• y=9.5x

Write the equation for the table given

• y = 1/3x
• y = 3x
• y = 1/2x
• x = 3y

If the constant of proportionality (multiplier) is 10, which of the following is the correct proportional equation?

• 10=kx
• 10=k
• y=10k
• y=10x

Write the equation for the table given

• y = 1/3x
• y = 3x
• y = 1/2x
• x = 3y

Joel earns $40 for shoveling snow on two driveways. Which equation correctly shows the  money (m) he earns per driveway (d)?

• d = 40m
• m = 40d
• m = 20d
• d = 20m

Write the equation for the table given

• y = 1/3x
• y = 3x
• y = -1/3x
• y = -3x

What is the equation for the graph?

• y=46x
• k=46
• y=92x
• x=92y