Question

Find the Length of v:
Initial point of v: (1,-3,4)
Terminal point of v: (1,0,-1)

Answer 1

I got \[\sqrt{34}\]

Answer 2

Yes, thats right. The equation you're using is the same equation as the distance formula for two dimensions but extrapolated into three dimensions:
\[d=\sqrt{ \Delta x ^2 + \Delta y^2 + \Delta z^2}\]

Answer 3

Ok, thanks!