Vector Review

If c=<-5, 4> and d=<8, 0>, calculate 2c+d

• <-2, 8>
• <-2, 0>
• <6, 8>
• <6, 0>

If a=<-4,6> and b=<-3, -7>, calculate a-b:

• <-7, 13>
• <-7, -1>
• <-1, 13>
• <-1, 1>

Calculate the direction angle (in degrees) for the vector <3, 12>

• 75.9
• 14.1
• -75.9
• -14.1

Find the magnitude of the vector <-5, 14>

• 14.9
• 13.1
• 15.1
• 9

Find the magnitude of AB if the initial point is (-3, 1) and the terminal point is (3, 9)

• 6
• 8.2
• 10
• 10.4

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

• <-9, 5>
• <-9, 11>
• <-9, -11>
• <9, -5>

Find the magnitude.

• 0

• 5

• -5

• 4

Find the magnitude.

• 5

• 3

• 25

• -4

Find the magnitude.

• -10

• -8

• 6

• 10

Find the magnitude.

• 4

• 5

• 3

• square root of 5