Calculate the difference quotient for f x 2x2 at a 1 Express numbers in exact form Use symbolic notation and fractions where needed f 1 h f 1 h Calculate f 1 by finding the following limit f 1 h f 1 h lim h 0 Give an exact answer Use symbolic notation and fractions where needed f 1 Find an equation of the tangent line to f at a 1 Express numbers in exact form Use symbolic notation and fractions where needed