Really need some help
2 answers:
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Answer:
A
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [a, b ] is
Here [ a, b ] = [ 2, 6 ], thus
f(b) = f(6) = - + 70 = - 64 + 70 = 6
f(a) = f(2) = - 2² + 70 = - 4 + 70 = 66
average rate of change = =
= - 15 → A