Proportional Equations

Proportional Representations: Equations

​y=_x

Proportional equations are in this format.
The blank is filled with the constant of proportionality - the number we multiply the x by to find out the y.

Multiple Choice

Which is not a proportional equation?

• y=3x

• y=1/4x

• y=x

• y=4x+6

Multiple Choice

Which is not a proportional equation?

• y = 5x

• y = 5 + x

• y =1/9x

• m = 7b

Filling in the blank

The COP (constant of proportionality) is found by dividing y by x

​Constant of Proportionality

​Write an equation to represent the table.

​Graphs

​Word Problems

​Ally can eat 4 slices of pizza in 9 minutes. Write an equation to represent how much time, x, it takes her to eat y pizza slices.