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This is the first year linear algebra question. Which of the following points is on the line containing the points $(1,0,5)$ and $(3,1,-2)$?

a). $( 0,-3,17)$

b). $(9,4,-23)$

c). $(-9,-4,23)$

d). $(0,3,-17)$

e). $(-1,-1,-12)$

The answer is b).

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    http://mathworld.wolfram.com/Collinear.html2012-12-07

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