(a) Find the slope, m, of the tangent to the curve y = 5+5x22x3 at the point where x = a. M= (b) Find equations of the tangent lines at the following points. y (1,8) (2.9) (c) Graph the curve and both tangents on a common axis. y 15 0 -10 -5 -5 -10F x 5 10 15 y 20 15 101 13 y 10 x 10 5 10 15 10 5 5 10 00 -10F -10 10 5 y 20 15 10 10F