Let f(x) = (a) Simplify (3 + h) - f(3) h Algebraically simplify your answer until you have cancelled out the factor of h in the denominator. (b) Evaluate lim f( 3 + h ) - f( 3 ) h -0 h If an answer does not exist, enter DNE. (c) Determine the equation of the line tangent to y = f(x) at x = 3. y =