Question

What are the coordinates of D, E and F after a reflection over the Y axis? Plot these points on the grid and label them D E and F

Answer 1

Reflection over y-axis rule:

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

The initial points have the next coordinates:

$\begin{gathered} D(-3,3) \\ \\ E(5,0) \\ \\ F(2,-2) \end{gathered}$

After the reflection over y-axis:

$D(-3,3)\rightarrow D^{\prime}(3,3)$$E(5,0)\rightarrow E^{\prime}(-5,0)$$F(2,-2)\rightarrow F^{\prime}(-2,-2)$