D 5 $3 Find the local extrema, if any, of the function f (x, y) = 24 - 2x3 + 4xy+ y Remember, since it is a quiz and not an exam, you can check your answers by looking at a graph. O No Saddle, Local min at (4,-8), local min at (-1,2) O No Saddle, Local min at (-4,8), local min at (1,-2) O Saddle at (0,0), Local min at (-4,8), local min at (1,-2) O Saddle at (0,0), Local max at (4,-8), local max at (-1,2) O This function has no local extrema or saddle points O none of the other answers are correct O Saddle at (0,0), Local min at (4,-8), local min at (-1,2)