Question

Question 1(Multiple Choice Worth 2 points)

Answer 1

Q1. A   Q2. ?  Q3. C  Q4. ?  Q5. A

sorry i did not know 2 and 3

Answer 2

Will tag-team n ans 2 n 4 here

2. Let u = <-4, -3>. Find the unit vector in the direction of u, and write your answer in component form.

unit vector is vector w/ magnitude of 1 in the same direction as u =u/|u|

|u| = sqrt (-4^2 + -3^2) = sqrt (16 + 9) = sqrt25
= 5

so unit vector is <-4/5, -3/5>

4. Given that P = (5, 1) and Q = (13, 8), find the component form and magnitude of vector PQ.

components <(13-5), (8-1)> = <8, 7>
magnitude = sqrt [(13-5)^2 + (8-1)^2] = sqrt(64+49) = sqrt(113)