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Mathematics 13 Online
OpenStudy (anonymous):

what does y=-x mean

OpenStudy (anonymous):

it means a line which contain points like(1,-1),(2,-2) and so on......

OpenStudy (anonymous):

You are free to choose any x you want. Once you choose an x, y is completely determined. For instance, if I choose x=3. Then y=-3. The collection of all possible choices of x (and thus y) forms a straight line, through the origin, with a slope of -1. |dw:1344808876636:dw|

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