1. Determine la | and |d|. Assume that each space on the grid measures 1 unit. Leave your solution as a simplified exact value. Show your work. 2. a) Which two vectors appear to have opposite directions? b) How do you know that they are actually running in opposite directions? c) Are they opposite vectors? Why or why not? d) Express the longer of the two vectors as a scalar multiple of the shorter. and 3. Create a unit vector for any of the vectors shown. Explain how you know it is a unit vector. d