Enter the x-coordinate of the solution to this system of equations. by = -43 + 20
23 + 4y = 12
The x-coordinate is ???

i think photomath can help with the question I'ma check

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.