Find v · u.
-v = 8i - 2j and u = -3i + 6j
A) 5i + 4j
B) -36
C) -24i - 12j
D) -12

Name: Find v · u. -v = 8i - 2j and u = -3i + 6j A) 5i + 4j B) -36 C) -24i - 12j D) -12
Brand: Quizplus
Rating: 4.9 (36 reviews)

Question

Quizplus · Accepted Answer

The dot product of two vectors v = ai + bj and u = ci + dj is calculated as v · u = ac + bd. For v = 8i - 2j and u = -3i + 6j, v · u = (8)(-3) + (-2)(6) = -24 - 12 = -36.

Find V · U