3. which ordered pair is a solution of the equation y=x-2? a) (3,1) b) (1,3) c) (-1,3) d) (3,-1)

substitute x in and see if it gives you y

y= (3-2)

y=1  (3,1)

Choice A

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.