PreCalc Honors Sem II Final Review

Given an initial point A ( 2, 4 ) and terminal point B ( -8, 7 ), find the component form of the vector AB.

• 〈-10,3〉
• 〈-6,3〉
• 〈10,11〉
• 〈-6,-3〉

Write in component form.

• <0, 4>

• <8, 2>

• <2, 8>

• <0, 2>

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

• <21, 2>
• <-19, -13>
• <-15, 3>
• 23

Find the magnitude of the vector <10, -8>

• 2

• 12.81

• 6

• 18

• 18.4

• 71.6

• 70.5

• 19.5

• -2j+5i

• -2+5j

• -2i+5j

• -2i+0, 0+5j

Which of the following shows the correct formula for the horizontal and vertical components of a vector?

Determine the direction and magnitude of the vector 〈7,18〉

• Direction 21.3°
  Magnitude 19.3
• Direction 68.7°
  Magnitude 19.3
• Direction 21.3°
  Magnitude 373
• Direction 68.7°
  Magnitude 373

Determine the components of the vector:

• <59.1, 10.4>

• <10.4, 59.1>

• 71^o

• 48^o

• 88^o

• 112^o