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September 17, 2014

September 17, 2014

Posted by **sue** on Tuesday, September 13, 2011 at 12:25am.

- geometry -
**Bosnian**, Tuesday, September 13, 2011 at 1:36amThe "point-slope" form of the equation of a straight line is:

y - y1 = m ( x - x1 )

(x1, y1) is a known point

m is the slope of the line

(x, y) is any other point on the line

In this case:

m = 5 / 3 , x1 = 57 , y1 = 12

y - 12 = ( 5 / 3 ) (x - 57 )

y = (5 x / 3 ) - ( 5 * 57 / 3 ) + 12

y = (5 x / 3 ) - ( 285 / 3 ) + 12

y = (5 x / 3 ) - 95 + 12

y = (5 x / 3 ) - 83

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