# A triangle has corners at (2, -5 ), ( 6 , 1), and ( 4 , 3)#. What will the new coordinates of the triangle be if it is reflected across the x-axis?

New coordinates of triangle will be $\left(2 , 5\right)$, $\left(6 , - 1\right)$ and $\left(4 , - 3\right)$
When a point $\left(x , y\right)$ is reflected across the $x$-axis, its coordinates become $\left(x , - y\right)$ and hence
the vertices of the triangle, which are $\left(2 , - 5\right)$, $\left(6 , 1\right)$ and $\left(4 , 3\right)$, new coordinates of triangle will be $\left(2 , 5\right)$, $\left(6 , - 1\right)$ and $\left(4 , - 3\right)$.