Question

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

Explanation:

Step1: Determine original coordinates of A

From the graph, point A has coordinates $(4,0)$.

Step2: Apply reflection rule

The rule for reflecting a point $(x,y)$ across the x - axis is $(x,-y)$. For point A$(4,0)$, when we apply the rule, $x = 4$ and $y = 0$, so $-y=0$. The new coordinates of A' are $(4,0)$.

Answer:

$(4,0)$