document.write( "Question 199339: Hello!\r
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document.write( "A quadratic function is given.
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document.write( "f(x) = 3 - 36x - 36x^2\r
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document.write( "(a) Express the quadratic function in standard form.\r
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document.write( "Thanks for the help! \n" );
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Algebra.Com's Answer #149824 by edjones(8007)![]() ![]() You can put this solution on YOUR website! Standard form: f(x)=a(x-h)^2+k \n" ); document.write( "f(x)=-36x^2-36x+3 \n" ); document.write( "=(-36x^2-36x)+3 \n" ); document.write( "=-36(x^2+x)+3 \n" ); document.write( "=-36(x^2+x+ 1/4 - 1/4)+3 (divide the coefficient of the second term by 2 and square it to complete the square then add its negative. \n" ); document.write( "=-36(x^2+x+ 1/4)-36(-1/4)+3 \n" ); document.write( "=-36(x+ 1/2)^2+9+3 \n" ); document.write( "=-36(x+ 1/2)^2+12 answer \n" ); document.write( "h=-1/2 the line of symmetry on the graph. \n" ); document.write( "(h,k)=(-1/2,12) the vertex of the graph \n" ); document.write( "The graph points upward because a is negative. \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( ". \n" ); document.write( " |