Determine whether each point lies on the graph of the equation. Show the work.

y=|x-1|+2 (a) (2,3) (b) (-1,0)

2x-y-3=0 (a) (1,2) (b) (1,-1)

x² +y²= 20 (a) (3, -2) ( b) (-4, 2)

y= 1/3x³ -2x² (a) (2, -16/3) (b) (-3, 9)