Solve the Problem $\mathrm { P } = ( - 6 , - 9 )$

question 183

Multiple Choice

Solve the problem.
-If $\mathrm { P } = ( - 6 , - 9 )$ and $\mathrm { Q } = ( \mathrm { x } , - 105 )$ , find all numbers $x$ such that the vector represented by $\overrightarrow { \mathrm { PQ } }$ has length $- 120$

• A) \(\{ 66 , - 78 \}\)
• B) \(\{ 78 , - 78 \}\)
• C) \(\{ 66 , - 84 \}\)
• D) \(\{ 78,66 \}\) .

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