document.write( "Question 787310: Write the standard form of the equation of the parabola with the given focus (-1,0) and vertex of (0,0). Then state the directrix. \r
\n" ); document.write( "\n" ); document.write( "Also with the vertex (2,3) and given focus (-2,0) \n" ); document.write( "
Algebra.Com's Answer #478248 by lwsshak3(11628)\"\" \"About 
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Write the standard form of the equation of the parabola with the given focus (-1,0) and vertex of (0,0). Then state the directrix.
\n" ); document.write( "Also with the vertex (2,3) and given focus (-2,0)
\n" ); document.write( "***
\n" ); document.write( "vertex: (0,0)
\n" ); document.write( "focus: (-1,0)
\n" ); document.write( "axis of symmetry: y=0
\n" ); document.write( "parabola opens leftward:
\n" ); document.write( "Its basic equation: (y-k)^2=-4p(x-h), (h,k)=(x,y) coordinates of the vertex
\n" ); document.write( "p=1(distance from focus to vertex on the axis of symmetry)
\n" ); document.write( "4p=4
\n" ); document.write( "directrix: x=1
\n" ); document.write( "Equation: y^2=-4x
\n" ); document.write( "..
\n" ); document.write( "vertex: (2,3)
\n" ); document.write( "focus: (-2,3)
\n" ); document.write( "axis of symmetry: y=3
\n" ); document.write( "parabola opens leftward:
\n" ); document.write( "Its basic equation: (y-k)^2=-4p(x-h), (h,k)=(x,y) coordinates of the vertex
\n" ); document.write( "p=4(distance from focus to vertex on the axis of symmetry)
\n" ); document.write( "4p=16
\n" ); document.write( "directrix: x=6
\n" ); document.write( "Equation: (y-3)^2=-16(x-2) \n" ); document.write( "
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