Question

Using a Mapping
A triangle has the coordinates

                A( 4, –1), B(3, –3), and C(0, 2).

Reflect the triangle over the y-axis and find the coordinates of its image.

A(4, −1) → A'(
,
)

B(3, −3) → B'(
,
)

C(0, 2) → C'(

Answer 1

Reflecting across the y-axis changes (x, y) to (−x, y).

A(4, −1) → A'(−4, −1)

B(3, −3) → B'(−3, −3)

C(0, 2) → C'(0, 2)