document.write( "Question 195835: hello i am very lost on graphing linear equations. I have tried but i am still really confused. Sketch the graph of the equation y=-1. please show all your work thank you so much! the chapter is exploring graphs of linear equations and the text book is Passport to Algebra and Geometry. \n" ); document.write( "
Algebra.Com's Answer #146854 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Plot some points.  Make a chart like this\r\n" );
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document.write( "x | y\r\n" );
document.write( "-----\r\n" );
document.write( "  |\r\n" );
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document.write( "Now since the equation is y = -1, the only\r\n" );
document.write( "choice we can give for y is -1, so we put\r\n" );
document.write( "-1's for all the y's\r\n" );
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document.write( "x | y\r\n" );
document.write( "-----\r\n" );
document.write( "  |-1\r\n" );
document.write( "  |-1\r\n" );
document.write( "  |-1\r\n" );
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document.write( "The equation y = -1 contains no x's, so we\r\n" );
document.write( "can pick any three numbers at random for\r\n" );
document.write( "the x's.  Say we pick -3, 0, and 4\r\n" );
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document.write( "x | y\r\n" );
document.write( "-----\r\n" );
document.write( "-3|-1\r\n" );
document.write( " 0|-1\r\n" );
document.write( " 4|-1\r\n" );
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document.write( "Plot those three points\r\n" );
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document.write( "Draw a straight line through them:\r\n" );
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document.write( "So you see it is a horizontal line through -1 on the\r\n" );
document.write( "y-axis.  \r\n" );
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document.write( "Edwin
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