# Math Help - Precalculus Problem

1. ## Precalculus Problem

If anyone could help me out in this, it would be greatly appreciated

1. for the given linear function compute the quotient
[f(x+h) -f(x)]/ h

where h is constant.

f(x) = -9x^2 + 12

this is the exact wording, so if it seems confusing, i dont know how else to put it...thanks....

2. Originally Posted by skabani
1. for the given linear function compute the quotient
[f(x+h) -f(x)]/ h

where h is constant.

f(x) = -9x^2 + 12
You know that $f(x+h)=-9(x+h)^2+12$, now substitute and reduce carefully.

3. but how am i supposed to use h in that problem?