Find the average rate of change from x = 3 to x = 15 for the function f(x) = 0.01(2)x and select the correct answer below. (5 points) 0.08
12
27.3
327.68

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb

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