orbie
Find the average rate of change of the function f over the given interval. f(x)=0.25x^4x^29x+8 from x=4 to x=3



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freckles
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\[\frac{f(4)f(3)}{43}\]
Use this to find the slope of the secant line from x=4 to x=3

orbie
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I don't understand how you put that into the problem.

freckles
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No you put the problem into that

freckles
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Do you know how to find f(4)?

orbie
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Would you put it into the equation?

freckles
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Replace the x's in your function with 4's

freckles
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Then to evaluate f(3)
Replace the x's in your function with 3's

orbie
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So what I got is for f(4)= 92 and f(3)= 7.75...is that right?

freckles
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That is right ! :)

freckles
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\[\frac{92(7.75)}{43}\]

orbie
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Ooooh wow I get it now! Thank you so much!