Given vectors $\mathbf { u } = \langle - 1,3 \rangle$ and $\mathbf { v } = \langle 1,4 \rangle$ determine the quantity indicated below. $- 2 \mathbf { u }{ \cdot}- 4 \mathbf { v }$
A)-48
B)-56
C)-46
D)88
E)20

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The Answer of Given vectors $\mathbf { u } = \langle - 1,3 \rangle$ and $\mathbf { v } = \langle 1,4 \rangle$ determine the quantity indicated below. $- 2 \mathbf { u }{ \cdot}- 4 \mathbf { v }$
A)-48
B)-56
C)-46
D)88
E)20

Given Vectors u=⟨−1,3⟩\mathbf { u } = \langle - 1,3 \rangleu=⟨−1,3⟩

Given Vectors $\mathbf { u } = \langle - 1,3 \rangle$