document.write( "Question 1048838: Plot the following equation using the x- and y-intercepts. If both intercepts are zero, find at least one other point. Then click on the correct graph below.\r
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Algebra.Com's Answer #664439 by Edwin McCravy(20056) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "Not all lines have both an x and a y-intercept.\r\n" );
document.write( "Horizontal lines (other than the x-axis itself) have a \r\n" );
document.write( "y-intercept but no x-intercept.\r\n" );
document.write( "Vertical lines (other than the y-axis itself) have an \r\n" );
document.write( "x-intercept but no y-intercept.\r\n" );
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document.write( "If the equation of a line contains only 1 variable, then it has only\r\n" );
document.write( "1 intercept.  If it contains two variables, then it has two intercepts.\r\n" );
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document.write( "2y + 6 = 0 contains only ONE variable (letter), the letter y, so it\r\n" );
document.write( "is a horizontal line with only a y-intercept and no x-intercept.\r\n" );
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document.write( "To find the y-intercept, solve it for y:\r\n" );
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document.write( "2y + 6 = 0\r\n" );
document.write( "    2y = -6\r\n" );
document.write( "     y = -3\r\n" );
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document.write( "So it is a horizontal line with a y-intercept on the y-axis at y=-3.  It\r\n" );
document.write( "has no x-intercept.\r\n" );
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document.write( "Here is the graph\r\n" );
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document.write( "Edwin

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