document.write( "Question 448875: please solve this and graph: 36y^2 + 216y - 4x^2 - 40x +80 = 0\r
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Algebra.Com's Answer #308851 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi
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document.write( "36y^2 + 216y - 4x^2 - 40x +80 = 0
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document.write( "[36(y+3)^2 - 9] -4[(x+5)^2 -25] = -80   |Multiplying thru by -1
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document.write( "  36(y+3)^2 - 324 -4(x+5)^2 + 100 = -80
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document.write( "  36(y+3)^2 -4(x+5)^2 = 144   
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document.write( "Hyperbola opening up and down: C(-5,-3) Vertices (-5,-1) and (-5,-5
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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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