Posted by Rose on Saturday, October 11, 2008 at 7:12pm.
I have tried to work this several ways and can not get the answer of 5
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 7:30pm
For line between the points (x2,y2) and (x,y1), the slope is
m = (y2y1)/(x2x1) = (73)/(x4) = 4
Therefore 4x  16 = 7  3 = 4
4x = 20
x = 5 is the correct answer

geometry/algebra  Angel, Saturday, October 11, 2008 at 9:33pm
Yes!

geometry/algebra  gabreilla, Monday, October 13, 2008 at 5:35pm
7n+4(6+3n)
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