Find f(a), f(a + h), and the difference quotient (at ) (a) where h $ 0. h f( x) = 7x2+ 2 f(a) = Ta- + 2 fla + h) = X f(ath ) - f(a ) h X Need Help? Read It Submit Answer 3. [3/3 Points] DETAILS PREVIOUS ANSWERS SALGTRIG4 2.1.045