document.write( "Question 79012This question is from textbook Algebra:Structure and Method
\n" ); document.write( ": Find the coordinates of the vertex and the equation of the axis of symmetry of the graph of each equation. y=x squared-3x-10 \n" ); document.write( "
Algebra.Com's Answer #56795 by scott8148(6628)\"\" \"About 
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this is the equation of a parabola with the axis of symmetry parallel to the y-axis and opening upward\r
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\n" ); document.write( "\n" ); document.write( "the axis of symmetry is midway between the points where the parabola crosses the x-axis (y=0)\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2-3x-10=0\" ... factoring gives (x-5)(x+2)=0 ... so the crossing points are (5,0) and (-2,0)\r
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\n" ); document.write( "\n" ); document.write( "the axis of symmetry goes thru (1.5,0) and the equation is x=1.5 ... this is also the x value for the vertex\r
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\n" ); document.write( "\n" ); document.write( "plugging into the original equation, y=2.25-4.5-10 ... so the vertex is (1.5,-12.25) \n" ); document.write( "
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