document.write( "Question 165687: linear equation x = -1 graphs as a horizontal/vertical/diagonal line choose the best answer
\n" ); document.write( "How do I do this? \n" ); document.write( "
Algebra.Com's Answer #122146 by gonzo(654)\"\" \"About 
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x = -1 would graph as a vertical line at x = -1.
\n" ); document.write( "y can be any value.
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\n" ); document.write( "y = -1 would graph as a horizontal line at y = -1.
\n" ); document.write( "x can be any value.
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\n" ); document.write( "y = x would graph as a diagonal line sloping upwards from bottom left to top right.
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\n" ); document.write( "y = -x would graph as a diagonal line sloping downwards from top left to bottom right.
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\n" ); document.write( "plot some points and you can see where the line is going.
\n" ); document.write( "for y = x, some values would be:
\n" ); document.write( "x = -5, y = -5
\n" ); document.write( "x = 0, y = 0
\n" ); document.write( "x = 5, y = 5
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\n" ); document.write( "for y = -x, some values would be:
\n" ); document.write( "x = -5, y = 5
\n" ); document.write( "x = 0, y = 0
\n" ); document.write( "x = 5, y = -5
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\n" ); document.write( "x-axis is horizontal
\n" ); document.write( "y-axis is vertical
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