Find the Dot Product V · W $\mathbf { v } = - 15 \mathrm { i } + 5 \mathbf { j } , \quad \mathbf { w } = 4 \mathbf { i } - 4 \mathrm { j }$

question 154

Multiple Choice

Find the dot product v · w.
- $\mathbf { v } = - 15 \mathrm { i } + 5 \mathbf { j } , \quad \mathbf { w } = 4 \mathbf { i } - 4 \mathrm { j }$

• A) \(- 60\)
• B) \(- 40\)
• C) \(- 20\)
• D) \(- 80\)

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