Question

point p has the coordinates (4,-2). what are the coordinates of p after a reflection across the x - axis? (4 points)

Explanation:

Step1: Recall reflection rule

When reflecting a point $(x,y)$ across the $x -$axis, the $x$-coordinate remains the same and the $y$-coordinate changes its sign.
Given point $P(4,- 2)$, where $x = 4$ and $y=-2$.

Step2: Apply the rule

For the reflection of point $P$ across the $x$-axis, the new $x$-coordinate $x'=x = 4$, and the new $y$-coordinate $y'=-y=-(-2)=2$.

Answer:

$(4,2)$