Which of the following are orthogonal to (2, 1)? Check all that apply.

A. (1, 2)
B. (-2, -3)
C. (-3, 6)
D. (1, -2)

Please explain. Thank you!

Question

Which of the following are orthogonal to (2, 1)? Check all that apply.

A. (1, 2)
B. (-2, -3)
C. (-3, 6)
D. (1, -2)

Please explain. Thank you!

alexandervonhumboldt2 · Answer

In mathematics, orthogonality is the relation of two lines at right angles to one another (perpendicularity), and the generalization of this relation into n dimensions; and to a variety of mathematical relations thought of as describing non-overlapping, uncorrelated, or independent objects of some kind.

alexandervonhumboldt2 · Answer

these lines are orgothionla http://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Perpendicular-coloured.svg/723px-Perpendicular-coloured.svg.png