Asked by Andrea

Given the function f(x)=-5+4x^2 calculate the following value:
f(a+h)
Please help ASAP!!! :(
Answered by oobleck
x is just a place holder. You can replace it with whatever value you wish.
f(2) = -5 + 4*2^2 = 11
f(a+h) = -5 + 4(a+h)^2
Answered by Reiny
wherever you see an x in f(x), simply replace it with a+h
f(x+h) = -5 + 4(x+h)^2
= -5 + 4(x^2 + 2hx + h^2)
= .....

I will let you finish it
Answered by Reiny
go with oobleck, I typed x+h instead of a+h
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