5. Three functions are shown below.
he
nt
+
300
a(x)
200
1
100
O 1 2 3 4 5 6
2
4
6
98889
b(x) 5
17 65 257
X
5
10
c(x) -3.5 -1
15
1.5
20
4
Part A: Which function represents a
linear function? Explain how you know.
b(x)
Part B: What is the average rate of
change for function b(x) over the
interval 2 ≤x≤ 6? Show your work.
N
6
E