3 years ago

HELP PLSS!!

Mathematics

1 answer:

erma4kov [3.2K]3 years ago

8 0

Answer:

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [ a, b ] is

$\frac{f(b)-f(a)}{b-a}$

Here [ a, b ] = [ 3, 6 ] , then

f(b) = f(6) = 6² + 3(6) + 2 = 36 + 18 + 2 = 56

f(a) = f(3) = 3² + 3(3) + 2 = 9 + 9 + 2 = 20 , then

average rate of change = $\frac{56-20}{6-3}$ = $\frac{36}{3}$ = 12

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