Proportional Relationships in Tables and Equations

What is the formula for a proportional relationship?

• y=kx

• y=k/x

• z=ykx

• y=ky

Which graph matches the table?

• A

• B

• C

• D

Using the graph above, determine the constant of proportionality.

• k = 0

• k = 1

• k = 3

• k = 6

Which graph is non-proportional?

• A

• B

• C

• D

What is the equation for this table? Use y=kx format.

• y=0.125x

• y=8x

• y=2x

• y=5x

Kelly gets paid $8.50 an hour working at Dunkin Donuts. Which direct variation equation could be used to determine how much Kelly makes for any number of hours.

• y = 8.50 + k

• y = 8.50k

Proportional or Not Proportional?

• Proportional

• Not Proportional

What is the equation for a proportional relationships with a C.O.P of 8?

Proportional or Not Proportional?

• Proportional

• Not Proportional

Which of the following equations represents a proportional relationship?