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Mathematics 16 Online
OpenStudy (madeleine2):

A line has a slope of -1 and contains the points (1, 2) and (2, y). The value of y is 1 3 -1

OpenStudy (jackthegreatest):

ok the formula for slope is m = (y1-y2)/(x1-x2)

OpenStudy (jackthegreatest):

so plug in what you know (the coordinates)

OpenStudy (jackthegreatest):

and the slope

OpenStudy (jackthegreatest):

|dw:1476115065470:dw|

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