document.write( "Question 910751: I need to know the vertex, axis of symmetry, roots, domain and the range of the following problem
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Algebra.Com's Answer #552637 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( "the vertex form of a Parabola opening up(a>0) or down(a<0), \"y=a%28x-h%29%5E2+%2Bk\" 
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document.write( "where(h,k) is the vertex  and  x = h  is the Line of Symmetry
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document.write( "Y= -4x^2-12x-3   |completing Square of ax^2 + bx + c
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document.write( "y = -4(x - (-3/2))^2 + 9 - 3  |Note: -3/2 = -b/2a
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document.write( " V(-3/2, 6), a=-4<0. Opens Downward, axis of symmetry x = -3/2
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document.write( "y = -4(x+3/2)^2 +6 
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document.write( "0 = -4(x+3/2)^2 +6
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document.write( "4(x+3/2)^2 = 6
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document.write( "(x+3/2)^2 = 6/4
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document.write( "x = -3/2 ± √6 / 2  roots
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document.write( "domain All real Numbers
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document.write( "range [6,−∞) 
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