document.write( "Question 817880: Help needed please & thank you.\r
\n" ); document.write( "\n" ); document.write( "Checking Analytic Skills – For each quadratic function defined in this problem, (a) use the vertex formula to find the coordinates of the vertex and (b) graph the function. Do not use a calculator.\r
\n" ); document.write( "\n" ); document.write( "P(x) = -3x^2 + 24x - 46
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Algebra.Com's Answer #492265 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( "Using the vertex form of a parabola,  
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document.write( "where(h,k) is the vertex
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document.write( "P(x) = -3x^2 + 24x - 46   |Completing the Square to find vertex form
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document.write( "P(x) = -3(x^2 -8x +16) +48  - 46
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document.write( "P(x) = -3(x-4)^2 + 2   V(4,2) 
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document.write( " 0 = -3(x-4)^2 + 2 
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document.write( " (x-4)^2 = 2/3,  x = 4 ±  
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