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Answered 2009-07-23 14:39:37

Rewriting the equation 3x + y = 15 gives y = 15 - 3x

The slope of this and any parallel line is the x multiple, which in this case is -3

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Parallel lines have the same slope. So if you know the slope of a line in question, or you can calculate it, then you know the slope of any line parallel to that line.


The line y = 6 is horizontal and has a slope of zero, as does any line that is parallel to it.


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Get in slope intercept form. 3X + 5Y = 15 5Y = -3X + 15 Y = -3/5X + 3 -3/5 is the slope of this line and the line parallel to this line


Slope = zero. The line is horizontal, parallel to the x-axis.


If it's parallel then it will have the same slope of -5


The slope of both lines will be the same.



If: y = 7 then there is no slope and the line will be parallel to the x axis


Well parallel lines have the same slopes....if you find the slope of a parallel that it the slope of the other line.....usaully you put this slope into Point-Slope Formula (y-1)= m(x-1) + 1 to find the answer as of Y=


For two lines to be parallel they must have the same slope. A line parallel to a line with slope -2 would have a slope of -2.


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Any line with a slope of -2x is parallel to your equation


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if the slope of a line is 2/3, then the slope of a parallel line would be 2/3.


Any line with a slope of 1 is parallel to y=x-3.


Any line that has a different slope than 3 (parallel lines have the same slope).


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