Concepts in vectors

Find the magnitude of the vector <-4, -6>.

• 7.211
• 52
• 3.162
• 4.472

If v =〈a,b〉 , then _____ is the vertical component of v.

• a
• i
• b
• j

Find the direction angle of the vector -i +2j to the nearest degree.

• 63°
• 117°
• 243°
• 297°

The magnitude of a vector is:

• direction

• x component

• length

• y-component

Name the figure using geometric notation.

• $\overrightarrow{SR}$

• $\overline{RS}$

• $\overrightarrow{RS}$

Calculate the magnitude of the vector <-4,-2>

• 4

• 6

• None of the solutions

Write your answer as a linear combination (no spaces)

(a)  

How do you know when to find the opposite

• $\left|0\right|$

• $\overrightarrow{\ \ \ }$

• ... the opposite of ....

• $\overleftarrow{\ \ \ }$

Given vector x, which color indicates the correct directional angle for the vector.

• red

• blue

• green

• none of the above

Find the magnitude of the vector <-5, 12>

• 13

• 10.91

• 7

• 17