ANy help is appreciatedQuote:

Find the coordinates of the image point when (-4, -3) is rotated 1/4 turnccwabout (0, 0) and then reflected over the y axis.

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- Jan 27th 2009, 01:31 PMhenryWTransformationsQuote:

Find the coordinates of the image point when (-4, -3) is rotated 1/4 turn**ccw**about (0, 0) and then reflected over the y axis.

- Jan 27th 2009, 01:44 PMPlato
The rotation matrix gives:

$\displaystyle \begin{gathered}

x' = x\cos (\theta ) - y\sin (\theta ) \hfill \\

y' = x\sin (\theta ) + y\cos (\theta ) \hfill \\

\end{gathered} $