Question

What are the coordinates of the vertices of quadrilateral W, L, H and D? The 1st part of instructions are in the pic below.

Answer 1

Since we have a reflection over the y-axis, we have that

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

Therefore, the new coordinates are:

$\begin{gathered} W^{\prime}(-6,4) \\ L^{\prime}(-6,-4) \\ H^{\prime}(2,-6) \\ D^{\prime}(2,3) \end{gathered}$