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July 24, 2014

July 24, 2014

Posted by **Rose** on Saturday, October 11, 2008 at 7:12pm.

find x if the slope of a line passing through points A(4,3) and B(x,7)equals 4

- geometry/algebra -
**drwls**, Saturday, October 11, 2008 at 7:30pmFor line between the points (x2,y2) and (x,y1), the slope is

m = (y2-y1)/(x2-x1) = (7-3)/(x-4) = 4

Therefore 4x - 16 = 7 - 3 = 4

4x = 20

x = 5 is the correct answer

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