Question

The point U (2, 1) is reflected across the y-axis. What will the coordinates of U' be?

A) (1, 2)
B) (2, -1)
C) (-2, -1)
D) Cannot be found
E) (-2, 1)

Answer 1

The point U (2, 1) reflected across the y-axis will have coordinates U' (-2, 1). option (D)

Step-by-step explanation:

The reflection of point U (2, 1) across the y-axis results in a point U' that has the same y-coordinate but the opposite sign for the x-coordinate. Therefore, the coordinates of U' after the reflection will be (-2, 1).