Use a graph of y = x to determine an additional ordered pair x, y that satisfies the equation find the ordered pair x, y if the x coordinates is 3

Another ordered pair that satisfies the equation y = x is (3, 3).

If the x-coordinate is 3, then the y-coordinate is also 3 in this case because y = x. Thus, the ordered pair (3,3) satisfies the equation y = x.