document.write( "Question 1088882: In the xy plane, the point (-1,2) is the minimum of the quadratic function f(x)=x^2+ax+b. What's the absolute value of a-2b? \n" ); document.write( "

Algebra.Com's Answer #703215 by MathTherapy(10552) $\"\"$ $\"About$

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In the xy plane, the point (-1,2) is the minimum of the quadratic function f(x)=x^2+ax+b. What's the absolute value of a-2b?
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Correct answer: , since the question asks for the ABSOLUTE VALUE of a - 2b. 
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document.write( "a - b = - 4, but |a - 2b| = 4. \n" );
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