Question

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

u= (9, 0) v= (0, -9)

A. neither

B. parallel

C. orthogonal

Answer 1

C

Explanation:

Edge2021

Answer 2

For this case we have the following vectors:
u = (9, 0)
v = (0, -9)
Using product point we have:
u.v = (9, 0). (0, -9)
u.v = (9) * (0) + (0) * (- 9)
u.v = 0 + 0
u.v = 0
If the scalar product of two vectors is zero, both vectors are orthogonal.
Answer:
C. orthogonal