document.write( "Question 765449: determine whether the given quadratic function has a minimum or maximum value. then find the coordinates of the minimum or maximum point. x^2+2x-9\r
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Algebra.Com's Answer #466171 by solver91311(24713) $\"\"$ $\"About$

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\n" ); document.write( "\n" ); document.write( "If the lead coefficient is positive, the parabola opens upward and the vertex is a minimum, otherwise the parabola opens downward and the vertex is a maximum.\r
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\n" ); document.write( "\n" ); document.write( "The

-coordinate of the vertex of the quadratic polynomial function

is found using the formula

. The

-coordinate of the vertex, and either the minimum or maximum value of the function depending on which way the parabola opens, is the value of the function at

. Which is to say:

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\n" ); document.write( "\n" ); document.write( "The only thing left for you to do is some arithmetic.\r
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\n" ); document.write( "\n" ); document.write( "John
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\n" ); document.write( "Egw to Beta kai to Sigma
\n" ); document.write( "My calculator said it, I believe it, that settles it
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$\"The$

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