document.write( "Question 561628: Given y=x^2+3x-28. How do I algebraically find: The vertex, The x and y intercepts, and write the equation in vertex and factor form. This makes absolutely no since to me at all, and I'm super confused. PLEASE HELP ME! \n" ); document.write( "
Algebra.Com's Answer #364338 by stanbon(75887)\"\" \"About 
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Given y=x^2+3x-28. How do I algebraically find: The vertex, The x and y intercepts, and write the equation in vertex and factor form.
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\n" ); document.write( "Complete the square:
\n" ); document.write( "y = x^2+3x + 9 -9-28
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\n" ); document.write( "y = (x+3)^2-37
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\n" ); document.write( "Vertex: (-3,-37)
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\n" ); document.write( "y-intercept:
\n" ); document.write( "Use the form y = x^2+3x-28
\n" ); document.write( "Let x = 0, then y = -28
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\n" ); document.write( "x-intercepts:
\n" ); document.write( "Solve x^2-3x-28 = 0
\n" ); document.write( "Factor:
\n" ); document.write( "(x-7)(x+4) =
\n" ); document.write( "x = 7 ; x = -4
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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