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anonymous

  • one year ago

Triangles DEF and D'E'F' are shown on the coordinate plane below: What rotation was applied to triangle DEF to create triangle D'E'F'? a. 90° clockwise b. 180° c. None of the above d. 90° counterclockwise

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    B

  3. anonymous
    • one year ago
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    180

  4. LynFran
    • one year ago
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    for point f(6,3)\[\left[\begin{matrix}-1 & 0 \\ 0 & -1\end{matrix}\right]\left(\begin{matrix}6 \\ 3\end{matrix}\right)=\left(\begin{matrix}-6 \\ -3\end{matrix}\right)\] ...for point D(-1,6)\[\left[\begin{matrix}-1 & 0 \\ 0 & -1\end{matrix}\right]\left(\begin{matrix}-1 \\ 6\end{matrix}\right)=\left(\begin{matrix}1 \\ -6\end{matrix}\right)\]...for point E(1,3)\[\left[\begin{matrix}-1 & 0 \\ 0 & -1\end{matrix}\right]\left(\begin{matrix}1 \\ 3\end{matrix}\right)=\left(\begin{matrix}-1 \\ -3\end{matrix}\right)\]...........180 degree rotation

  5. anonymous
    • one year ago
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    hey I said it first

  6. LynFran
    • one year ago
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    i know @Gunboss i just added the proof/explanation for y its that...........

  7. anonymous
    • one year ago
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    Ok cool

  8. anonymous
    • one year ago
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    can you

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