Proportional vs Non Proportional Equations

Is this proportional:

x= 10y + 20

• Yes

• No

y=7x

• proportional

• not proportional

Jay earns $17 per hour

• y=17x

• x=17y

Which equation is PROPORTIONAL?

• y=2x + 1

• y=5x

• y=5x - 9

• y=-4x + 10

Which equation is NOT PROPORTIONAL?

• y=3x

• y=6x

• y=8x

• y=10 + 5

y=6x - 9

• proportional

• not proportional

Limes are $0.99 per pound

• x=0.99y

• y=0.99x

Does the table represent a proportional relationship?

• Yes.

• No.

Is the graph proportional or non proportional?

• proportional

• non proportional

What is the y-intercept of the graph and is it proportional or non-proportional?

• Proportional, y-intercept is 8 miles

• Non-proportional, y-intercept is 8 miles

• Proportional, y-intercept is 8 hours

• Non-proportional, y-intercept is 8 hours