Quiz#2 - Vectors

 $p=<5,\ -6>$  

Find the magnitude to the nearest tenth.

 $q=<-3,\ -8>$  
Find the direction angle to the nearest tenth.  

What is the direction angle for a vector whose component form is $<-4,\ 0>$  

• 0 degrees

• 90 degrees

• 180 degrees

• 270 degrees

Find the direction angle and magnitude of the vector <0, -8>

Select all that apply.

• magnitude = 8

• magnitude = -8

• 90°

• 180°

• 270°

Find the linear combination form of vector AB with initial point A(0, 8) and terminal point B(-9, -3)

• $-9i+5j$

• $-9i+11j$

• $-9i-11j$

• $-9i+5j$

Find the magnitude of the vector $-5i+14j$  

• 13.08

• 14.87

• 4.36

• 14.17

Find the direction angle for the vector $-3i+8j$  

• 159.44°

• 200.56°

• 110.56°

• 249.44°

Find the unit vector in the direction of <4, -3>

• <0.8, -0.6>

• <0.57, -0.43>

• <1, -1>

• -¾

A unit vector is a vector that is _____________the given vector and has _____________.

• parallel to, magnitude of 1
• equal to, the same direction
• opposite, the same size
• smaller than, the same direction

Determine the direction and magnitude
of the vector $<18,\ 7>$  

• Direction 21.3°

  Magnitude 19.3

• Direction 68.7°

  Magnitude 19.3

• Direction 21.3°

  Magnitude 373

• Direction 68.7°

  Magnitude 373