Two functions, function A and function B, are shown below:
Function A:
x y
7 21
8 24
9 27
Function B:
(Graph Attachment below)
Which statement best compares the rate of change of the two functions?
A. The rate of change for both functions are 2
B. The rate of change for both functions are 3
C. The rate of change of function A is greater than the rate of change of function B
D. The rate of change of function B is greater than the rate of change of function A