Find the dot product v · w.
-$$v = - 4 i , \quad w = j$$
A) 0
B) $- 3$
C) $\sqrt { 17 }$
D) $- 4$

Name: Find the dot product v · w. -\[v = - 4 i , \quad w = j\] A) 0 B) $- 3$ C) $\sqrt { 17 }$ D) $- 4$
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Question

Quizplus · Accepted Answer

The dot product of two vectors is calculated as $v \cdot w = v_xw_x + v_yw_y + v_zw_z$. Here, $v = -4i$ and $w = j$, which means $v = (-4, 0, 0)$ and $w = (0, 1, 0)$. Thus, their dot product is $(-4)(0) + (0)(1) + (0)(0) = 0$.

Find the Dot Product V · W v=−4i,w=jv = - 4 i , \quad w = jv=−4i,w=j

Find the Dot Product V · W $v = - 4 i , \quad w = j$