36. IC curve’s mathematical slope is:

) ΔYΔX\frac{\Delta Y}{\Delta X}ΔXΔY​

B) MUXMUY\frac{MU_X}{MU_Y}MUY​MUX​​

C) PXPY\frac{P_X}{P_Y}PY​PX​​

D) dYdX=−MUXMUY\frac{dY}{dX} = -\frac{MU_X}{MU_Y}dXdY​=−MUY​MUX​​