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 = 7x + 1
How much more is the rate of change of function 2 than the rate of change of function 1? (1 point)
a
5
b
6
c
7
d
8