document.write( "Question 1189921: what is the vertex of -X^2+2x-3 \n" ); document.write( "

Algebra.Com's Answer #821426 by Boreal(15235) $\"\"$ $\"About$

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The vertex is where x=-b/2a
\n" ); document.write( "this is -2/-2 or +1 for x
\n" ); document.write( "when x=1, f(1)=-2
\n" ); document.write( "(1, -2)
\n" ); document.write( "-
\n" ); document.write( "vertex form
\n" ); document.write( "-(x^2-2x+3)
\n" ); document.write( "complete the square
\n" ); document.write( "-(x^2+2x+1)-3+1, the first 1 is negative and the second is positive
\n" ); document.write( "-(x-1)^2-2
\n" ); document.write( "this is vertex form
\n" ); document.write( "the vertex is (1, -2), or (-h, k)
\n" ); document.write( " $\"graph%28300%2C300%2C-10%2C10%2C-10%2C10%2C-x%5E2%2B2x-3%29\"$ \n" ); document.write( "

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