I ne equation for the above saving schedule is: Multiple Choice O S = 20 +.8Yd- O Yd = 20 + 2s O S =-20 + .2Yd. O Yd = -20 + 8sSaving (S) $60 40 S 20 $50 100 150 200 -20 Disposable income (Y) The equation for the above saving schedule is: Multiple Choice S = 20 + .8Yd Yo = 20 + 2S