SOLUTION: Find f(a), f(a + h),and the difference quotient f(a + h) − f(a)/h, where h ≠ 0. f(x) = 5x + 2 f(a)= f(a + h) = f(a + h) − f(a)/=h I'm totally lost

Algebra ->  Linear-equations -> SOLUTION: Find f(a), f(a + h),and the difference quotient f(a + h) − f(a)/h, where h ≠ 0. f(x) = 5x + 2 f(a)= f(a + h) = f(a + h) − f(a)/=h I'm totally lost       Log On


   

Question 986696: Find f(a), f(a + h),and the difference quotient f(a + h) − f(a)/h, where h ≠ 0.
f(x) = 5x + 2
f(a)=
f(a + h) =
f(a + h) − f(a)/=h
I'm totally lost with the f(a+h) - f(a) over h. Please help
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29=5x%2B2
Substitute,
f%28a%29=5a%2B2
f%28a%2Bh%29=5%28a%2Bh%29%2B2=5a%2B5h%2B2
So,
f%28a%2Bh%29-f%28a%29=5a%2B5h%2B2-5a-2=5h
and
%28f%28a%2Bh%29-f%28a%29%29%2Fh=%285h%29%2Fh=highlight%285%29