Question

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A graph shows an increasing function that curves upward in quadrant one. The horizontal axis is labeled x and the vertical axis is labeled y.
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What is the average rate of change of the function graphed on the interval x:[1,3]
?

(1 point)
Responses

26
26

6
6

−1

negative 1

13
13

Answer 1

13

The graph passes through (1,1) and (3,27), so average rate = [f(3) − f(1)]/(3−1) = (27 − 1)/2 = 13.