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 = 2x + 1

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

A.1
B.2
C.3
D.4

I say B.

1 answer

slope 1 = (3-3)/(4-0) = 0
slope 2 = 2

2-0 = 2