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January 31, 2015

January 31, 2015

Posted by **chica** on Monday, November 29, 2010 at 9:49pm.

#38. (-4,1),(-1,2),(5,a)

#39. (4,5),(1,2),(a,0)

- Geometry -
**Reiny**, Monday, November 29, 2010 at 11:03pm#38

(a-2)/(5+1) = (2-1)/(-1+4)

(a-2)/6 = 1/3

3a - 6 = 6

a = 4

Do #39 the same way, let me know what you got

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