Find the Unit Vector in the Direction of the Given $\mathbf { u } = \langle - 3 , - 4 \rangle$

question 171

Multiple Choice

Find the unit vector in the direction of the given vector. Write your answer in the indicated form.
-Let $\mathbf { u } = \langle - 3 , - 4 \rangle$ . Find the unit vector in the direction of $\mathbf { u }$ , and write your answer in component form.

• A) \(\langle 1,1 \rangle\)
• B) \(\left( - \frac { 3 } { 5 } , - \frac { 4 } { 5 } \right)\)
• C) \(\left( - \frac { 3 } { 7 } , - \frac { 4 } { 7 } \right)\)
• D) \(\left( - \frac { 3 } { 25 } , - \frac { 4 } { 25 } \right)\)

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