SOLUTION: given: f(x)=5x-x^2
find: f(5-h)-f(5)/h
Algebra.Com
Question 163395This question is from textbook Algebra and Trigonometry
: given: f(x)=5x-x^2
find: f(5-h)-f(5)/h
This question is from textbook Algebra and Trigonometry
Answer by gonzo(654) (Show Source): You can put this solution on YOUR website!
given: f(x)=5x-x^2
find: f(5-h)-f(5)/h
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f(x) = 5*x - x^2
f(5-h) is gotten by replacing x with (5-h), so
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f(5) is gotten by replacing x with 5, so
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since there is no parentheses around it, your formula f(5-h)-f(5)/h
is assumed to be:
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if you meant , that would be a different equation.
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i'll solve for
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this becomes
which becomes
which becomes
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as far as i can tell.
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if you really meant , then the equation becomes
which becomes
which becomes
which becomes
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either way the key is to substitute (5-h) for x in f(5-h), and to substitute (5) for x in f(5)
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