Which function has a greater rate of change?

y=x + 2

y=3x - 2

y=4x + 1

y=2x - 1

I am going to assume this is for calculus. You would need to find the derivative of each because derivative represents rate of change.

The derivates are:

y'=1

y'=3

y'=4

y'=2

Therefore the answer it the third choice because it has the largest derivative

The answer is y=4x+1. The rate of change is the number before x; that is, the slope of the equation. In this case 4 is the largest of all. So the third choice or equation is right.