Question

1.A(4,4), B(3, -1), C(1, -2); y-axis (; y x 0 B D4

Answer 1

The rule of a reflection across the y-axis is

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

So, let's transform each vertex.

`\begin{gathered} A(4,4)\rightarrow A^(\prime)(-4,4) \\ B(3,-1)\rightarrow B^(\prime)(-3,-1) \\ C(1,-2)\rightarrow B^(\prime)(-1,-2) \end{gathered}`

Now, we graph the reflection, the image below shows it