Calculus

Let f(x) - 3x2 + 12x - 4. f (x + h) - f(x) Using the definition of derivative, f' (x) - lim h-+0 h enter the expression needed to find the derivative function. f'(x) = lim h +0 After evaluating this limit, we see that f'(z) = df Finally, the equation of the tangent line to f( ) where a - 2 is