SOLUTION: if f (x)=x^2-18x+13 find and simiplify f(x+h)-f(x)/h h=0

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Question 404100: if f (x)=x^2-18x+13 find and simiplify f(x+h)-f(x)/h h=0

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
if f(x)=x^2-18x+13 find and simiplify f(x+h)-f(x)/h h=0
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f(x+h) = (x+h)^2-18(x+h)+13
f(x+h) = x^2+2hx+h^2-18x-18h+13
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Subtract x^2-18x+13 to get:
2hx+h^2-18h
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Divide by "h": to get:
2x +h - 18
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Cheers,
Stan H.
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