Lydia graphed ADEF at the coordinates D (-2, -1), E (-2, 2), and F (0,0). She thinks ADEF is a right triangle. Is Lydia's assertion correct? Yes, the slopes of EF and DF are opposite reciprocals,
Yes, the slopes of EF and DF are the same.
O No; the slopes of EF and DF are not opposite reciprocals.
O No; the slopes of EF and DF are not the same.