Question

if triangle abc is reflected across the x - axis, what are the coordinates of point b? ( , )

Explanation:

Step1: Identify the coordinates of point B

From the graph, point B has coordinates $(4, - 2)$.

Step2: Apply the reflection rule across the x - axis

The rule for reflecting a point $(x,y)$ across the x - axis is $(x,-y)$. For point B with $x = 4$ and $y=-2$, the new y - coordinate is $-(-2)=2$ and the x - coordinate remains the same.

Answer:

$(4,2)$