Question

If P=(4,−1), find the coordinates of point P when reflected across the x-axis.

a) (4,1)
b) (−4,−1)
c) (4,−1)
d) (−4,1)

Answer 1

When a point is reflected across the x-axis, the y-coordinate changes sign while the x-coordinate remains the same.

Step-by-step explanation:

When a point is reflected across the x-axis, the y-coordinate changes sign while the x-coordinate remains the same. In this case, point P has coordinates (4, -1). When reflected across the x-axis, the y-coordinate becomes positive, resulting in the coordinates (4, 1).