document.write( "Question 171709: Question-In the equation ax^2 + bx + c=0, the value of b^2 -4ac is called the of the quadratic equation. What does the value tell you about the real roots of the equation?\r
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document.write( "Part 2, they don't want the graph. Given the equation,determine how many x intercepts the parabola has. And whether its vertix lies above or below or on the axis.
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document.write( "Thanks appreciate all your help. Could not do it without you. \n" );
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Algebra.Com's Answer #126831 by stanbon(75887) ![]() You can put this solution on YOUR website! In the equation ax^2 + bx + c=0, the value of b^2 -4ac is called the determinant of the quadratic equation. \n" ); document.write( "What does the value tell you about the real roots of the equation? \n" ); document.write( "Ans: \n" ); document.write( "If b^2-4ac < 0 there are no Real Number roots. \n" ); document.write( "If b^2-4ac = 0 there are two equal Real Number roots. \n" ); document.write( "If b^2-4ac > 0 there are two unequal Real Number roots. \n" ); document.write( "--------------------------------------------------------\r \n" ); document.write( "\n" ); document.write( "Part 2, they don't want the graph. Given the equation,determine how many x intercepts the parabola has. And whether its vertix lies above or below or on the axis. \n" ); document.write( "If b^2-4ac < 0 there are no x-intercepts; vertex above or below and graph \n" ); document.write( "does not intersect the x-axis. \n" ); document.write( "If b^2-4ac = 0 the graph touches the x-axis at one point: vertex on x-axis \n" ); document.write( "If b^2-4ac > 0 the graph intersects the x-axis at two points: vertex above or below and graph passes thru the x-axis. \n" ); document.write( "================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |