document.write( "Question 110458: what equation has a slope of 2 and a y-intercept of -5 \n" ); document.write( "

Algebra.Com's Answer #80510 by Edwin McCravy(20055) $\"\"$ $\"About$

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what equation has a slope of 2 and a y-intercept of -5
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document.write( "First let's draw it, starting with plotting the y-intercept\r\n" );
document.write( "of b = 2\r\n" );
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document.write( "Now let's express the slope m = 2 as the fraction \r\n" );
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document.write( "The numerator is the change in y, or +2.\r\n" );
document.write( "The denominator is the change in x, or +1\r\n" );
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document.write( "From the y-intercept, we draw a line 2 units long UPWARD,\r\n" );
document.write( "since +2 is positive.\r\n" );
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document.write( "   graph(400,375,-10,10,-10,10) )}}}\r\n" );
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document.write( "Now from the end of that UPWARD line, we draw a line\r\n" );
document.write( "+1 units RIGHTWARD, since +1 is positive.\r\n" );
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document.write( "Now we draw a line through the y-intercept and the\r\n" );
document.write( "end of the rightward line:\r\n" );
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document.write( "The equation of the line which has slope m and y-intercept b\r\n" );
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document.write( "y = mx + b\r\n" );
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document.write( "So:\r\n" );
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document.write( "The equation of the line which has slope 2 and y-intercept -5\r\n" );
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document.write( "y = (2)x + (-5)\r\n" );
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document.write( "or\r\n" );
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document.write( "y = 2x - 5.\r\n" );
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document.write( "Edwin

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