6
QuizMultiple Choice

Vector Addition and Subtraction

Question 6 of 10 • MO-Algebra II A

Let a = ⟨5, –9⟩ and b = ⟨–3, 1⟩, and c = b – a. What is the magnitude and direction angle of c?

Answer
A
|c| = 12.8; θ = 128.7°
B
|c| = 18.0; θ = 128.7°
C
|c| = 12.8; θ = 308.7°
D
|c| = 18.0; θ = 308.7°
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