document.write( "Question 40448: using the formulas for parabolas, graph and write the equations of parabolas with the following properties. Graph an extra point other than a vertex. The Parabola with focus (0, 5) and directrix y= -5. \n" ); document.write( "
Algebra.Com's Answer #25820 by stanbon(75887)\"\" \"About 
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using the formulas for parabolas, graph and write the equations of parabolas with the following properties. Graph an extra point other than a vertex. The Parabola with focus (0, 5) and directrix y= -5.\r
\n" ); document.write( "\n" ); document.write( "Draw the picture. Do you see that the parabola must be opening upward.
\n" ); document.write( "Therefore the general form is x^2=4py
\n" ); document.write( "P is half the distance from the directrix to the focus or p=5
\n" ); document.write( "EQUATION:
\n" ); document.write( "x^2=4(5)y
\n" ); document.write( "y=(1/20)x^2\r
\n" ); document.write( "\n" ); document.write( "An extra point would be (1,1/20)
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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