Question

Use the formula f(b)−f(a)b−a
to calculate the average rate of change over the interval [−2,−1]
given the function table for y=3x+2
. Express your answer as an integer.

This table displays the output values of a function f(x) for specific input values of x.
x f(x)
−3
13
−2
1
−1
3
0 9
(1 point)

Answer 1

Average rate of change = (f(−1) − f(−2)) / (−1 − (−2)) = (3 − 1) / 1 = 2.