# What is a vector?

## Be careful! Vector u is not in standard position.

## #1. What are the rectangular components of vector u?

Hint: < , >

## #2. What is the magnitude of vector u?

Hint: You know the lengths of both legs from #1.

## #3. What is the direction of vector u?

Hint: You have a right triangle, know the lengths of both legs, and need to find the angle from the horizontal.