Question

Find the average rate of change of the function f(x) = 3^x+2 over the interval [-2, 2].

Answer 1

2.028

or

20/9

Explanation:

(f(2) - f(-2)) / (2 - (-2)) =

(3^2 + 2 - (3^(-2) + 2))/(2 - (-2)) = (9 - 1/9)/4 = 8.111... / 4 = 2.028

(8 8/9)/4

(80/9)÷4 or (80/9)*1/4 = 80/36

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