document.write( "Question 448899: graph. label vertices, foci, and centers where applicable.\r
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Algebra.Com's Answer #308845 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "3. x2 - y2 = 1  C(0,0)  and Vertices (1,0) and (-1,0)
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document.write( "c = Foci (1.414,0)&(-1.414,0)
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document.write( "4. y2 = -8x    Vertex(0,0)  4p = -8 p = -2 Focus (-2,0)\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 opening up or down, 
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document.write( " where(h,k) is the vertex
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document.write( " The standard form is , where  the focus is (h,k + p) \n" );
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