Ambrose has indifference curves with the equation, x2= constant 4x11/2, where larger constants correspond to higher indifference curves. If good 1 is drawn on the horizontal axis and good 2 on the vertical axis, what is the slope of Ambrose's indifference curve when his consumption bundle is (9,5) ? a. -8 b. 0.67 c. -0.55 d. -1.8 e. -3 Clear my choice