Question

Determine whether the vectors u and v are parallel, orthogonal, or neither.

u = <1, -2>, v = <-4, 8>

Answer 1

finding the dot product would help
if its = 0 they are orthogonal

Answer 2

-4, -16

Answer 3

-4 + -16 = -20

Answer 4

you add the multiplication for the dot product @Loveiskey18

Answer 5

\[-4u=v\]

Answer 6

@Zarkon
so they are neither parallel nor orthogonal ?