document.write( "Question 422550: how would you find the coordinates of the vertex of the graph y=2x(sqared by 2)+4x-2 \n" ); document.write( "

Algebra.Com's Answer #294942 by Gogonati(855) $\"\"$ $\"About$

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The function $\"y=+2x%5E2%2B4x-2\"$ is a parabola As we know the coordinates of the vertex are:
\n" ); document.write( " $\"+x=+-b%2F2a+=+-4%2F2%282%29\"$ , { x =-1 } and \r
\n" ); document.write( "\n" ); document.write( " $\"y+=2%2A%28-1%29%5E2%2B4%2A%28-1%29-2\"$ , {y = -4}\r
\n" ); document.write( "\n" ); document.write( " The vertex of parabola is the point (-1, -4)\r
\n" ); document.write( "\n" ); document.write( " $\"graph%28+400%2C+400%2C+-5%2C+5%2C+-5%2C+5%2C+2x%5E2%2B4x-2%29\"$ . \n" ); document.write( "

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