document.write( "Question 864510: Graph -3x^2 + 12y^2 = 84. What are the domain and range? \n" ); document.write( "
Algebra.Com's Answer #521045 by ewatrrr(24785)\"\" \"About 
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document.write( "Hi
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document.write( "-3x^2 + 12y^2 = 84
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document.write( "\"y%5E2%2F7+-+x%5E2%2F28+=+1\" Hyperbola opening Up and down C(0,0) along x =0
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document.write( "vertices (0, √7) and (0, -√7)
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document.write( "domain All real numbers. Range:  -√7 ≥  y ≤ √7 
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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( "  \"%28y-k%29%5E2%2Fb%5E2+-+%28x-h%29%5E2%2Fa%5E2+=+1\" 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 \"sqrt%28a%5E2%2Bb%5E2%29\"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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