Graph the point that has the coordinates (4 1/2, 2 1/2).

Graph is below

Step-by-step explanation:

I graphed the point on the graph below.

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°

4x and 6y

im not sure though