Jess
posted by Calculus .
Let f(x)=3x^3 +7.5x +1. In this problem you will estimate f'(3) by computing the average rate of change of f(x)over a small interval. Round your answers to three decimal places.
First choose the interval of length .1 with 3 being the left endpoint of
the interval.
Then f'(3)≈ ______
Now let the interval have length .01. Then f'(3)≈ _______
Finally let the interval have length .001
Then f'(3)≈
**I am genuinely lost on where to even begin with this problem. I understood the rest of my homework completely, except this one. My homework will be due before someone can get to answer this, I am almost sure of that, so please  just work it out for me so that I can better understand it for the midterm.
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