Please help!

What is the average rate of change of f(x) over the interval [-3,9]?

(Answer in simplified fraction) Answer and explanation please

Please help! What is the average rate of change of f(x) over the interval [-3,9]? (Answer in simplified fraction) Answer and explanation please class=

Answer :

LammettHash

It's the slope of the secant line to f(x) through the points (-3, f (-3)) and (9, f (9)),

[tex]\dfrac{f(9) - f(-3)}{9 - (-3)} = \dfrac{-7 - 1}{12} = -\dfrac8{12} = \boxed{-\dfrac23}[/tex]

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