WORTH 75 POINTS
△ABC is reflected to form △A′B′C′ .
The vertices of △ABC are A(−7,1) , B(−5,−3) , and C(−3,2) . The vertices of △A′B′C′ are A′(−7,−1) , B′(−5,3) , and C′(−3,−2) .
Which reflection results in the transformation of △ABC to △A′B′C′ ?
A. reflection across the x-axis
B. reflection across the y-axis
C. reflection across y = x
D. reflection across y=−x