Precalculus Review 2

Find the component form of a vector whose initial point is (5, 7) and terminal point is (1, 10)

• <-4, 3>
• <4, -3>
• 5
• <6, 17>

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

• <21, 2>
• <-11, 26>
• <8, 3>
• 23

Find the magnitude of the vector <-5, 12>

• 13
• 10.91
• 7
• 17

Find the component form of a vector whose magnitude is 10 and direction is 150°.

• <10, 150>
• <-8.66, 5>
• <6.99 , -7.14>
• 10i + 150j

Find the direction angle for the vector <5, -2>

• 338.20°
• 21.80°
• 291.80°
• 68.2°

What is the magnitude of the vector 4i + 3j ?

• (4, 3)

• 7

• 5

• 25

Tags

CCSS.HSN.VM.A.1

Find the component form of a vector whose terminal point is (15, 9) and initial point is (1, 5)

• <14, 4>
• <-14, -4>
• 2√53
• <16, 14>

a = <-7, -8>. Write the vector as a linear combination of the unit vectors i, and j.

• -7i - 8j

• <-7i, -8j>

• -8i -7j

• -15ij

Tags

CCSS.HSN.VM.A.1

Find the magnitude of vector AB if A is (-3, 1) and

B is (3, 9).

• 8

• 2√7

• 10

• 5√2

Evaluate without a calculator: cos^-1(1/2)

• π/2

• π/4

• π/3

• π/6