document.write( "Question 350839: If the graph of the line x-2y=-1 in the xy-plane is reflected across the x-axis, which of the following is an equation of the resulting reflection? \n" ); document.write( "
Algebra.Com's Answer #250786 by stanbon(75887)\"\" \"About 
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If the graph of the line x-2y=-1 in the xy-plane is reflected across the x-axis, which of the following is an equation of the resulting reflection?
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\n" ); document.write( "Reflection across the x-axis causes all the y-values to be multiplied by -1.
\n" ); document.write( "Your equation:
\n" ); document.write( "x-2y=-1
\n" ); document.write( "2y = x+1
\n" ); document.write( "y = (1/2)x+(1/2)
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\n" ); document.write( "Your Problem:
\n" ); document.write( "x-2(-y)=-1
\n" ); document.write( "x+2y = -1
\n" ); document.write( "2y = -1-x
\n" ); document.write( "y = (-1/2)x-(1/2)
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\n" ); document.write( "Graph of the two lines:
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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