Hello Joel.
you have the equation y -2 = x
the first point is (0,?) when you plug 0 for x in the equation, you can find y
y - 2 =0; y = 2 so the first orders pair is (0, 2)
the second one; 0 - 2 = x then x = -2; the ordered pair is. (-2, 0)
you can use the same method to find missing value of last ordered pair
when you graph it just use the intercept points which are (0, 2) and (-2, 0)
hope that helps