Linear functions M and P are shown below. FUNCTION M
FUNCTION P
y
y = 7x + 9
-2
0
1
2
11
4
21
In comparing the rates of change, which statement about Function M and Function P is true?
A. Their rates of change differ by 2.
B. Their rates of change differ by 4.
C. Function M has a greater rate of change than Function P.
D. Function M and Function P have the same rate of change.