Respuesta :

choixongdong
average rate of change = (f(7) - f(5)) / (x7 - x5)
f(7) = 12 (7^3) + 12 = 4128
f(5) = 12 (5^3) + 12 = 1512

so
average rate of change = (4128 - 1512)/(7-5)
average rate of change = 2616 / 2
average rate of change = 1308

hope it helps

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