document.write( "Question 83001: Draw the graph of 2x^2-y=8 Where does the graph intersect the x axis? \n" ); document.write( "

Algebra.Com's Answer #59549 by Mona27(45) $\"\"$ $\"About$

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Rearrange your equation like this: y=2x^2-8
\n" ); document.write( "And to find where the graph crosses the x-axis, put y=0 (because ALL points on the x-axis have a y-coordinate of 0)
\n" ); document.write( "So
\n" ); document.write( "2x^2-8=0
\n" ); document.write( "2x^2=8
\n" ); document.write( "x^2=4
\n" ); document.write( "x=2 or x=-2
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-4%2C+4%2C+-10%2C+20%2C+2x%5E2-8+%29+\"$ \n" ); document.write( "

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