pehs.psd202.orgpehs.psd202.org/documents/tfrey/1520606626.pdfConic Section. (y-k)2 o o (x—h)2 How...
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pehs.psd202.orgpehs.psd202.org/documents/tfrey/1520606626.pdfConic Section. (y-k)2 o o (x—h)2 How do you know the coordinates of the center? How do you know the direction of opening?