document.write( "Question 1041402: Substitute the values for a, b, and c into b2 – 4ac to determine the discriminant. Which quadratic equations will have two real number solutions? (The related quadratic function will have two x-intercepts.) Check all that apply.
\n" ); document.write( "0 = 2x2 – 7x – 9
\n" ); document.write( "0 = x2 – 4x + 4
\n" ); document.write( "0 = 4x2 – 3x – 1
\n" ); document.write( "0 = x2 – 2x – 8
\n" ); document.write( "0 = 3x2 + 5x + 3 \n" ); document.write( "
Algebra.Com's Answer #656354 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "He told you correctly.  But here's the rule\r\n" );
document.write( "that you go by:\r\n" );
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document.write( "For equations of this type:\r\n" );
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document.write( "0 = ax2 + bx + c\r\n" );
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document.write( "a = coefficient of x2.\r\n" );
document.write( "b = coefficient of x.\r\n" );
document.write( "c = the constant term.\r\n" );
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document.write( "Calculate b2-4ac.\r\n" );
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document.write( "If you get a positive number, there are two real solutions.\r\n" );
document.write( " (The related quadratic function will have two x-intercepts)\r\n" );
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document.write( "If you get 0, there is one real solution.\r\n" );
document.write( "  (The related quadratic function will just touch the x-axis in one point.)\r\n" );
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document.write( "If you get a negative number, there are no real solutions.\r\n" );
document.write( " (The related quadratic function will not touch or cross the x-axis)\r\n" );
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document.write( "Edwin
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