document.write( "Question 763665: I need help graphing the equation: y-3=3(x+1) \r
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Algebra.Com's Answer #464950 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
First solve for y and get it into slope intercept form y = mx+b\r
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\n" ); document.write( "\n" ); document.write( "y-3=3(x+1) \r
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\n" ); document.write( "\n" ); document.write( "y-3=3x+3\r
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\n" ); document.write( "\n" ); document.write( "y=3x+3+3\r
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\n" ); document.write( "\n" ); document.write( "y=3x+6\r
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\n" ); document.write( "\n" ); document.write( "Looking at \"y=3x%2B6\" we can see that the equation is in slope-intercept form \"y=mx%2Bb\" where the slope is \"m=3\" and the y-intercept is \"b=6\" \r
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\n" ); document.write( "\n" ); document.write( "Since \"b=6\" this tells us that the y-intercept is .Remember the y-intercept is the point where the graph intersects with the y-axis\r
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\n" ); document.write( "\n" ); document.write( "So we have one point \r
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\n" ); document.write( "\n" ); document.write( "Now since the slope is comprised of the \"rise\" over the \"run\" this means\r
\n" ); document.write( "\n" ); document.write( "\"slope=rise%2Frun\"\r
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\n" ); document.write( "\n" ); document.write( "Also, because the slope is \"3\", this means:\r
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\n" ); document.write( "\n" ); document.write( "\"rise%2Frun=3%2F1\"\r
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\n" ); document.write( "\n" ); document.write( "which shows us that the rise is 3 and the run is 1. This means that to go from point to point, we can go up 3 and over 1\r
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\n" ); document.write( "\n" ); document.write( "So starting at , go up 3 units \r
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\n" ); document.write( "\n" ); document.write( "and to the right 1 unit to get to the next point \r
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\n" ); document.write( "\n" ); document.write( "Now draw a line through these points to graph \"y=3x%2B6\"\r
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\n" ); document.write( "\n" ); document.write( " So this is the graph of \"y=3x%2B6\" through the points and \r
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\n" ); document.write( "\n" ); document.write( "The second problem doesn't make any sense. If you had the points (1,-3) and (0,-3), which is the y-intercept, then you would have a horizontal line. This horizontal line has NO x-intercept. So there has to be a typo somewhere.
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