Question

find the coordinates of point d after point d is reflected across the x - axis. list the coordinates of point d. d(-1,3)

Explanation:

Step1: Recall reflection rule

When a point $(x,y)$ is reflected across the $x -$axis, the $x$-coordinate remains the same and the $y$-coordinate changes its sign.

Step2: Apply rule to point D

Given point $D(-1,3)$, for the $x$-coordinate of $D'$, $x=- 1$ (remains the same). For the $y$-coordinate of $D'$, $y=-3$ (sign changes).

Answer:

$(-1,-3)$