calculus

For the function f(x)=x^3−8x+3,
a) Determine a SIMPLIFIED expression for [f(5+h)−f(5)] / h. What does this expression represent?
b) Using your simplified expression from part (a), evaluate if h = 0.001. What does this value represent?

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  1. you will definitely need your calculator for this

    for a) follow the steps in the answer to your post from 9:24 pm

    b)
    [f(5+h)−f(5)] / h
    = (5.001^3 - 8(5.001) + 3 - (5^3 - 8(5) + 3) )/.001
    = ......

    let me know what you get

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  2. I got 67.015

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  3. good job, the real value using Calculus would be 67

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