1. Tuesday, February 8

2. Lesson 6.4 part one

3. The answer you get when vectors are multiplied together
Dot products
The answer you get when vectors are multiplied together

4. Note that the answer to a dot product is a number, not a vector
The dot product of v = <v1, v2> and w = <w1, w2> is equal to
v • w = v1w1 + v2w2
Note that the answer to a dot product is a number, not a vector

5. If v = <2, -3> and w = <-8, 1> then find the following:
2(v • w)
(v • w)v
v • w
w • v
2v • 3w

6. If u=<-1, 3>, v = <2, -4> and w = <1, -2> then find the following:
(u • v)w
3v • 2w
u •2 w

7. You can also use dot products to find ||v||
If v = <6, 8>, find ||v||

8. Homework:Page 464 #1-11 (odd)