Consider the function y - f(r) graphed below. Give the z-coordinate of a point where: A. the derivative of the function is positive: = = B. the value of the function is positive: = = C. the derivative of the function is largest: z = D. the derivative of the function is zero: = = E. the derivative of the function is approximately the same as the derivative at a = 2.75 (be sure that you give a point that is distinct from z = 2.75!): = = 12 ? 8 8 X IN OV W Ai 4