Question

Reflect the given coordinate points across the line y= x

Answer 1

Given the points:

$\begin{gathered} B\colon(-3,-1) \\ C\colon(-3,3) \\ D\colon(0,3) \end{gathered}$

We need to reflect the points over the line y = x

The rule of reflection is as follows:

$(x,y)\rightarrow(y,x)$

So, the points after reflection will be:

$\begin{gathered} B^{\prime}\colon(-1,-3) \\ C^{\prime}\colon(3,-3) \\ D^{\prime}\colon(3,0) \end{gathered}$