Answer: functions graphically because they were, after all, just sets of points in the plane. Then in ... However, of these two answers, only x = −2 fits in the domain x < 1 for this piece. This means the only x-intercept for the x < 1 region of the x-axis is (−2,0). ... use the formula f(x) = x − 3, so the point on the graph (1,f(1)) is (1,−2).
