Question

The coordinates of point L on a coordinate grid are (−2, −4). Point L is reflected across the y-axis to obtain point M and across the x-axis to obtain point N. What are the coordinates of points M and N?

A) M(2,4), N(-2,-4)
B) M(2, -4), N(-2, 4)
C) M(-2, -4), N(2,4)
D) M(-2, 2), N(2, -4)

Answer 1

B.

Explanation:

As you can see in the image, when you reflect the poitn L across the y-axis the sign of the x value changes, so the point M is (2,-4) and when you reflect the poitn L across the x-axis the sign of the y value changes, so the point N is (-2,4).