Polygon ABCDE is reflected across the x-axis to form polygon A′B′C′D′E′. Then polygon A′B′C′D′E′ is dilated by a scale factor of
0.5 about D′ to form polygon LMNOP. Vertices A and B correspond to L and M, respectively. if the length of ab is 2.20 units the length of lm is ? units
Well I believe the correct equation would be 3x-y+7 because the y- intercept is 7 which is positive. That could only mean that the answer with a positive 7 is correct.