document.write( "Question 436069: Consider the quadratic function y+x^2+x-2
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document.write( "Determine a)the y-intercept
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document.write( "b) the axis of symmetry
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document.write( "c)the x-intercepts
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document.write( "d)the vertex
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document.write( "use the informations above to sketch the graph of y=x^2+x-2 \n" );
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Algebra.Com's Answer #301698 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Consider the quadratic function y= x^2+x-2 \n" ); document.write( "Determine \n" ); document.write( "a)the y-intercept \n" ); document.write( "Let x = 0, then y = -2 \n" ); document.write( "-------------------------------- \n" ); document.write( "b) the axis of symmetry \n" ); document.write( "Complete the square: \n" ); document.write( "x^2+x+(1/2)^2 = y+2+(1/2)^2 \n" ); document.write( "(x+(1/2))^2 = y+(9/4) \n" ); document.write( "Axis at x = -1/2 \n" ); document.write( "--------------------------- \n" ); document.write( "c)the x-intercepts \n" ); document.write( "Solve: x^2+x-2 = 0 \n" ); document.write( "Factor: (x+2)(x-1) = 0 \n" ); document.write( "x = 1 or x = -2 \n" ); document.write( "----------------------------- \n" ); document.write( "d)the vertex \n" ); document.write( "Use (x+(1/2))^2 = y+(9/4) \n" ); document.write( "Vertex at (-1/2,-9/4) \n" ); document.write( "=========================== \n" ); document.write( "use the informations above to sketch the graph of y=x^2+x-2 \n" ); document.write( " \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================== \n" ); document.write( " \n" ); document.write( " |