Question

For the function, find and simplify...will write equation below

Answer 1

(A) \[f(x+h)-f(x)\]
and
(B)\[\frac{ f(h+h)-f(x) }{ h }\]
\[f(x)=9x^2-1\]

Answer 2

We know our function is:
f(x)=9x^2−1

For part (a), it wants you to find f( x + h) - f(x),
So firstly you need to work out what "f (x+h)" equals to...
To do this, you just sub (or "plug") in "x+h" into your original f(x) function... so replace the x's with (x+h)