For f(x) = va + 19, find f '(x) using the definition f '(x) = lim f(ath) -f(2) h -+ 0 h f' ( 20 ) = Using this, find the tangent line to the graph of y = va + 19 at x = -3. Write the equation of the line in slope-intercept form. y =\fLet at) = 2ac3 + 4a: + 1 Use the limit denition of the derivative to calculate the derivative of f: f'(w) = y: Use the same formula from above to calculate the derivative of this new function (i.e. the second derivative of f ): f\"($) = f