essay Posted on June 25, 2016 by admin Question (a) If G(x) = 4×2 – x3, find G'(a) and use it to find equations of the tangent lines to the curve y = 4×2 – x3 at the points (2, 8) and (3, 9). (b) Illustrate part (a) by graphing the curve and the tangent lines on the same screen.