Chapter 9.4, Problem 3BCYP

To determine

To describe the angle transformation that maps B onto B”.

Explanation of Solution

Given:

The figure given is B is line $n$ and then line $q$

  

Calculation:

To reflect the figure along the line $x=2$ , just reflect each vertex in the x-axis by adding their x-coordinates by $2$ . In symbols $(x,y)\to (x+2,y)$ , so the image vertices are-

  $\begin{array}{l}R(-1,1)\to R\text{'}(1,1)\\ S(4,1)\to S\text{'}(6,1)\\ T(4,-1)\to T\text{'}(6,-1)\\ V(-1,-3)\to V\text{'}(1,-3)\end{array}$