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document.write( "Hi,
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document.write( "y^(2)-9x^(2)-12y-36x-9=0 ⇒ (y-6)^2 - 9(x+2)^2 = 9
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C(-2,6)
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document.write( " V(-2, 9) and V(-2,3)
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Foci (-2, 6 ±
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document.write( "Asymptotes:
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document.write( " y-6 = 3(x +2) y = 3x+12
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document.write( "and y-6 = -3(x+2) y = -3x
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document.write( "Standard Form of an Equation of an Hyperbola opening up and down is:
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with C(h,k) and vertices 'b' units up and down from center, 2b the length of the transverse axis
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document.write( "Foci
units units up and down from center, along x = h
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document.write( "& Asymptotes Lines passing thru C(h,k), with slopes m = ± b/a
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