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April 1, 2015

April 1, 2015

Posted by **Roberto & Cecilia** on Thursday, June 21, 2012 at 4:08pm.

- calculus exam review -
**Reiny**, Thursday, June 21, 2012 at 4:53pmfind two direction vectors

vector CA = (1,1,1)

vector BA = (9,-6,-5)

so one such equation is

r = (6,1,4) + s(1,1,1) + t(9,-6,-5)

you write a second one,

you could simply use one of the other 2 given points, or find the third direction vector.

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