Posted by Jenny on Monday, February 11, 2013 at 3:15pm.
What is the vector equation of the line joining the points (5; 0; 1) and
(7; 4; 7)?

maths  Steve, Monday, February 11, 2013 at 3:40pm
r(t) = (5,0,1) + (7t,4t,7t)
or
r(t) = (5+7t)i + 4tj + (1+7t)k
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