Vector Review

Find the component form of AB with initial point A(1, -3) and terminal point B(1, 3)

• <2, 0>
• <0, 6>
• <0,-6>

• <-2,0>

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

• <-10, 2>
• <4, -5>
• <-6, 10>
• <6, -10>

If y = <2, 0> and
z = <-1, -4>, find 3y - 2z.

• <5, -8>
• <4, 8>
• <8, 8>
• <-8, -8>

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

• 52

Find the dot product of <1, -2> and <3, 2>.

• 1
• <3, -4>
• <4, 0>
• -1

Find the angle between vectors <1,3> and <2,-5>.

• 40.24°
• 49.76°
• 139.76°
• 92.57°

Find the angle between the two vectors:

• -0.789°

• 142.1°

• 100°

• 0.789°

If the dot product of two vectors are equal to zero, then what do we know about the two vectors?

• They are parallel.
• They are orthogonal.
• They are neither.

Find the unit vector in the same direction as v.

• <0.385, 0.923>
• <-0.832, 0.555>
• <5/13, 12/13>
• <-5/13, -12/13>