Y = -3/2 x + 1
y = -3/2 x - 1
y = -2/3 x + 1
y = -2/3 x - 1

The  other information that will prove that the two triangles are similar is: the angle i is congruent to the angle l.    the explanation is shown below:   the  aa similarity postulate (or angle-angle similarity postulate) states that  two triangles are similar when two angles of a triangle are congruent to two angles of the other triangle. therefore, if the angle h is congruent to angle k, the  angle i must be  congruent to the angle l to prove that both triangles are similar.