I don't know why you've evaluated the function at ...
It should be
Consider the function: f(x) = 2 - 2x - X^2
Evaluate the difference quotient for the given function. Simplify your answer.
f(2+h) - f(2) / h
I found f(2+h) = (-6 -6h -h^2)
I found f(2) = (-22)
Can this be simplified any more?
Please show me how.
-h^2 -6h +16 / h