Let /(x )= X (a) Simplify f(2 + h) - 1(2) h Algebraically simplify your answer until you have cancelled out the factor of h in the denominator. (b) Evaluate lim f(2 + h) - f(2) 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 = 2. y