Determine whether the vectors u and v are parallel, orthogonal, or neither. u = , v = Answer Choices: (a)neither (b)parallel (c)orthogonal

Question

Determine whether the vectors u and v are parallel, orthogonal, or neither. u = <6, -2>, v = <2, 6> Answer Choices: (a)neither (b)parallel (c)orthogonal

anonymous · Answer

take the dot product of u and v, what does it equal?

anonymous · Answer

do you multiply 6 by -2 and 2 by 6?

anonymous · Answer

@billj5

anonymous · Answer

yes and sum those products, technically I think you did it wrong but it will give you same value

anonymous · Answer

-12 and 12

anonymous · Answer

-12 + 12

anonymous · Answer

so 0 which means what? They're parallel

anonymous · Answer

they are orthogonal if the dot product is 0 http://tutorial.math.lamar.edu/Classes/CalcII/DotProduct.aspx

anonymous · Answer

awesome great would you be able to help me with another?

anonymous · Answer

if you post another question, yes