Posted by **Kyle** on Saturday, September 14, 2013 at 2:18pm.

Find the value of k so that the line containing the points (k,−8) and (−3,−5) is parallel to the line containing the points (9,7) and (12,5).

- Math Homework HELP! -
**Henry **, Monday, September 16, 2013 at 4:39pm
(k,-8), (-3.-5).

(9,7), (12,5).

m1 = m2 = (5-7)/(12-9) = -2/3.

m1 = (-5-(-8))/(-3-k) = -2/3

(-5+8)/(-3-k) = -2/3

3/(-3-k) = -2/3

6+2k = 9

2k = 3

k = 3/2.

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