document.write( "Question 448900: write an equation for the conic sections\r
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\n" ); document.write( "\n" ); document.write( "7. parabola with vertex at (0,0) and directrix x = -3\r
\n" ); document.write( "\n" ); document.write( "8. hyperbola with foci at (-3,0) and (3,0) and vertices at (2,0) and (-2,0)\r
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Algebra.Com's Answer #308840 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "5. ellipse with center at (0,0) vertex (-4,0) and co-vertex (0,3) 
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document.write( "6. circle with center at (-1,2) and radius 4.  
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document.write( "7. parabola with vertex at (0,0) and directrix x = -3 
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document.write( "      y^2 = (3/4)x    4p = 3     p = 3/4
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document.write( "8. hyperbola with foci at (-3,0) and (3,0) and vertices at (2,0) and (-2,0)
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document.write( "  y^2/4 - x^2/5 = 1    c = = 3   a = \r
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document.write( "Standard Form of an Equation of a Circle is  
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document.write( "where Pt(h,k) is the center and r is the radius\r
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document.write( " Standard Form of an Equation of an Ellipse is 
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document.write( "where Pt(h,k) is the center and a and b  are the respective vertices distances from center.\r
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document.write( "Standard Form of an Equation of an Hyperbola is   where Pt(h,k) is a center  with vertices 'a' units right and left of center.
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document.write( "Standard Form of an Equation of an Hyperbola opening up and down is:
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document.write( "   where Pt(h,k) is a center  with vertices 'b' units up and down from center.\r
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document.write( "Using the vertex form of a parabola,  where(h,k) is the vertex
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document.write( " The standard form is , where  the focus is (h,k + p) 
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