document.write( "Question 851812: Write the vertex form for a parabola with the given characteristics.\r
\n" ); document.write( "\n" ); document.write( "1. vertex ( 0, 0) directrix x = -15\r
\n" ); document.write( "\n" ); document.write( "2. vertex (3, 3) focus (3, 0)\r
\n" ); document.write( "\n" ); document.write( "3. Vertex ( 0, 0 ) focus ( 2, 0)\r
\n" ); document.write( "\n" ); document.write( "Write the standard form for the parabola given the following equation.\r
\n" ); document.write( "\n" ); document.write( "4. x^2 + 8x - y + 20 = 0 \n" ); document.write( "

Algebra.Com's Answer #513188 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "sketch IT (Directrix  x = 15 the clue) Parabola opening left a < 0
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document.write( "the vertex form of a Parabola opening right(a>0) or left(a<0), 
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document.write( " where(h,k) is the vertex and  y = k  is the Line of Symmetry
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document.write( "  V(0,0)   Finding value of a
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document.write( "p(distance of the directrix and focus left 0r right of vertex) = 15, a = 1/4p = -1/60 as a < 0
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