2 years ago

If f(x)=x^3-x, what is the average rate of change of f(x) over the interval [1,5]?

1 answer:

RSB [31]2 years ago

4 0

Answer:

Step-by-step explanation:

Average rate of change=Δf(x)/Δx = [f(x2)-f(x1]/[x2-x1]

Δf(x)/Δx = [f(5)-f(1]/[5-1]

f(5)=5³-5=120

f(1)=1³-1=0

Δf(x)/Δx = [120-0]/[5-1]=120/4=30

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