The rate of change is 65. It means that you or the vehicle is traveling 65 miles per hour
The slope is 1/2, I explain in the other question
(0,2),(-2,-1),(2,5)
-3x+2y=2
+3x +3x
2y/2=3x+2/2
y=1 1/2x+2
Plug in numbers for x then solve for y
There were no slopes listed below but in order for two equations to be parallel they need to have the same slope. So in this case any equation with a slope of 5x would be parallel to your equation.