The graph represents function 1 and the equation represents function 2: A graph with numbers 0 to 4 on the x-axis and y-axis at increments of 1. A horizontal straight line is drawn joining the ordered pairs 0, 3 and 4, 3.
Function 2
y = 4x + 1

How much more is the rate of change of function 2 than the rate of change of function 1?

1)

1

2)

2

3)

3

4)

4