Vector Review

Given an initial point R ( -12, 4 ) and terminal point S ( 28, -17 ), find the component form of the vector RS.

• 〈14,-13〉
• 〈-14,13〉
• 〈-40,-21〉
• 〈40,-21〉

Find the magnitude of the vector <2, -3>.

• √11
• 13
• √-4
• √13

Find the direction angle for the vector <-8, 3>

• 159.444°

• 200.556°

• 249.444°

• 339.444°

write vector a as a sum of unit vectors if it's component form is <-3, 5>

• <-3i, 5j>

• 3i-5j

• <-3, 5>

Given u = <3, 7> and v =<-5, 4>, find 2u - 3v

• <21, 2>
• <-11, 26>
• <8, 3>
• 23

Write in component form.

• <0, 4>

• <8, 2>

• <2, 8>

• <0, 2>

If a = <-5,3> and b=<4, 5>. Which shows a-b? (select all that apply)

• 
• 
• 
• 

If w = <2, -5> and y = <2, 0>, find 2w + y

• <-10, 2>

• <4, -5>

• <-6, 10>

• <6, -10>

Find a vector in the same direction as <5, -3> but with a magnitude of 9.

• <7.717, -4.630>

• <4.098, -2.865>

• <8.966, .784>

• Not enough information to do.

What is the terminal point of vector v if v=<-8, -7> and the initial point is (2, 10)

• (-6, 3)

• (6, -3)

• (10, -3)

• (10, 17)