document.write( "Question 747031: how can you tell if the vertex is the max or min of a quadratic function? \n" ); document.write( "

Algebra.Com's Answer #454668 by josgarithmetic(39617) $\"\"$ $\"About$

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The coefficient on the x^2 term tells you. If this coefficient is positive, the parabola has a minimum; and if this coefficient is negative, the parabola has a maximum. \n" ); document.write( "

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