3 years ago

Please Help Thank You ( For Brainliest )

Mathematics

1 answer:

Viktor [21]3 years ago

8 0

I think it should be congruent figures

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Given the function h(a) = -x^2+ 7x + 14, determine the average rate of change

Yakvenalex [24]

Answer:

- 2

Step-by-step explanation:

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

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

Here [a, b ] = [1, 8 ], thus

f(b) = f(8) = - 8² + 7(8) + 14 = - 64 + 56 + 14 = 6

f(a) = f(1) = - 1² + 7(1) + 14 = - 1 + 7 + 14 = 20

average rate of change = $\frac{6-20}{8-1}$ = $\frac{-14}{7}$ = - 2

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