Question

Triangle ABC is reflected across the x-axis with vertices A(-3, 2), B(-1, 7), and C(6, 1). What are the coordinates of A' ? a. ( -3 , -2 ) b. ( 6 , -1 ) c. ( -1 , -7 )

Answer 1

a

Explanation:

under a reflection in the x- axis

a point (x, y ) → (x, - y ) , then

A (- 3, 2 ) → A' (- 3, - 2 )