Reflection -

 

This problem is a great example of a proportional relationship because it has qualities that would make it one and in the table above, it's a unit rate that is equal to each other making it proportional.

 

This problem also demonstrates that the unit rate is the slope of the graph because the line is linear and goes straight up diagonally, you can also test this by adding the slope triangles. 

 

The answer for #9 is NOT a unit rate because the unit rate must be a number above or below one, for #9 to be a unit rate it must be simplified to it's simplest form which would be 10/1 or $10 over 1 hr.