Proportional/Nonproportional Equations

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

• 10=kx

• 10=k

• y=10k

• y=10x

What does k represent in the equation y = kx?

• constant rate of change

• constant of proportionality

• the equation

• x/y

• 9.3

• 3

• 9

• 9.3x

Proportional or Non-Proportional?

• Proportional

• Non-Proportional

Is this equation y = 14x showing proportionality?

• yes

• no

Proportional Equation

y = kx

• Proportional

• Nonproportional

How much money (m) Lisa makes at McDonalds after h hours

m = 8.25h

• Proportional

• Nonproportional

County Fair costs $5 to enter and each ride (r) costs $2. Total cost (c) equation

c = 2r+5

• Proportional

• Nonproportional

y=3x+2

• Proportional

• Nonproportional

Total edge length of a cube

• Proportional

• Nonproportional