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Graph ABCD with vertices B(2, 1), C(4,4) and D(4,0) and its image after the reflection in the line n: x=0.

Graph ABCD with vertices B(2, 1), C(4,4) and D(4,0) and its image after the reflection-example-1
User TomBot
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2 Answers

14 votes
14 votes
2,1 maybe I just need points
User Luanne
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25 votes
25 votes

We have a triangle BCD with vertices


\lbrace(2,1),(4,4),(4,0)\rbrace

The transformation is a reflection in the line x = 0(also know as the y-axis). A reflection on the y-axis is given by the following transformation:


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

Doing this transformation on each one of our vertices, we can find the transformed figure.


\begin{gathered} (2,1)\rightarrow(-2,1) \\ (4,4)\rightarrow(-4,4) \\ (4,0)\rightarrow(-4,0) \end{gathered}

Then, the image is


\lbrace(-2,1),(-4,4),(-4,0)\rbrace

The option that fits this transformation is option b.

User Ameer Mousavi
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3.0k points