document.write( "Question 436069: Consider the quadratic function y+x^2+x-2
\n" ); document.write( "Determine a)the y-intercept
\n" ); document.write( "b) the axis of symmetry
\n" ); document.write( "c)the x-intercepts
\n" ); document.write( "d)the vertex
\n" ); document.write( "use the informations above to sketch the graph of y=x^2+x-2
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Algebra.Com's Answer #301698 by stanbon(75887)\"\" \"About 
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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)
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\n" ); document.write( "use the informations above to sketch the graph of y=x^2+x-2
\n" ); document.write( "\"graph%28400%2C300%2C-10%2C10%2C-10%2C10%2Cx%5E2%2Bx-2%29\"
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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