Given $\mathbf { u } = - 3 \mathbf { i } + 2 \mathbf { j }$

Multiple Choice

Given $\mathbf { u } = - 3 \mathbf { i } + 2 \mathbf { j }$ and $\mathbf { u } = 4 \mathbf { i } - \mathbf { j }$ ,find $u\cdot v$ .

A) -10
B) -14
C) 11
D) -5
E) -12