document.write( "Question 1046302: Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.\r
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document.write( "f(x) = -x2 - 2x + 2\r
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document.write( " a. {-1, -2}
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document.write( " b. {1, 2}
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document.write( " c. {-1, 2}
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document.write( " d. {-2, 1} \n" );
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Algebra.Com's Answer #661776 by rothauserc(4718)![]() ![]() You can put this solution on YOUR website! f(x) = -x2 - 2x + 2 \n" ); document.write( ": \n" ); document.write( "the general form of a quadratic is \n" ); document.write( ": \n" ); document.write( "f(x) = ax^2 +bx +c \n" ); document.write( ": \n" ); document.write( "this function is a parabola that curves downward since the coefficient of the x^2 term is negative \n" ); document.write( ": \n" ); document.write( "the vertex of the parabola is the maximum point on the curve \n" ); document.write( ": \n" ); document.write( "x = -b/2a = -(-2) / 2(-1) = -1 \n" ); document.write( ": \n" ); document.write( "substitute -1 for x in our function \n" ); document.write( ": \n" ); document.write( "y = -(-1)^2 -2(-1) +2 = 3 \n" ); document.write( ": \n" ); document.write( "vertex is at (-1,3) \n" ); document.write( ": \n" ); document.write( "*************************************************************** \n" ); document.write( "f(x) has a maximum at the point (-1,3) \n" ); document.write( "note that the correct answer is not in the choices you supplied \n" ); document.write( "*************************************************************** \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( " |