document.write( "Question 609826: find the vertex, value of p, axis of symmetry, focus, and directrix y-2+-1/8(x+2)^2 \n" ); document.write( "

Algebra.Com's Answer #383998 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "Note: the vertex form of a parabola opening up or down,  where(h,k) is the vertex.
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document.write( "y-2+-1/8(x+2)^2   ||Assuming you meant: y - 2 = (-1/8)(x+2)^2
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document.write( "y = (-1/8)(x+2)^2 + 2   ||Vertex(-2,2), axis of symmetry is x = -2
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document.write( "The standard form is , where  the focus is (h,k + p)
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document.write( "  (x+2)^2 = -8(y-2)^2 , 4p = -8,   and focus is (-2,0), directrix is y= 4
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document.write( "See below descriptions of various conics                         
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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  where Pt(h,k) is the center. (a positioned to correspond with major axis)
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document.write( " a and b  are the respective vertices distances from center and ąare the foci distances from center: a > b\r
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document.write( "Standard Form of an Equation of an Hyperbola opening right and  left is:
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document.write( "   where Pt(h,k) is a center  with vertices 'a' units right and left of center.\r
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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( "\n" );
document.write( "the vertex form of a parabola opening up or down,  where(h,k) is the vertex.
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document.write( "The standard form is , where  the focus is (h,k + p)\r
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document.write( "the vertex form of a parabola opening right or left,  where(h,k) is the vertex.
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document.write( "The standard form is , where  the focus is (h +p,k ) \n" );
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