Line segment pq is reflected across two lines as described below. • whenpq¯¯¯¯¯is reflected over line a, the image ofp (7,−6)  is p′ (5,−1). • whenp′q′¯¯¯¯¯¯¯is reflected over line b, the image ofp′ (5, 1)  is p'' (1, 9). which of the following is not true? lines a and b are parallel. pq,  p′q′, and p′′q′′ are congruent. the midpoint of p′p′′ lies on line b. points q, q′, and q′′ form a scalene triangle.