not sure

[dmoney0569]

find and simplify
f(a+h)-f(a)/h
for the function
f(x)=2x2-x+1
i have no idea how to start

 

[tkhunny]

Plug-n-chug.

What does the function notation mean?

If f(x) = 3*x:
What is f(a+h)? It's 3*(a+h).
What is f(a)? It is 3*(a).
What is f(Four Score and Seven Years Ago)?

Your turn.