Question

which of the following vectors is not parallel to u = <4,-12>
a) -3, -1
b) -2, 6
c) 12,-36
d) 0, 0
e) 1,3

Answer 1

which are not multiple of u.

Answer 2

if u and v are parallel

the u = a,b and v = ak, bk

v/u is there for:
ak bk
/a /b
-------
k k

the division of their parts produces a constant ...

Answer 3

given that u or v aint a zero vector perhaps :)

Answer 4

thanks it helps :)