Question

Given →u = (-7, 1/2) and →w = (2, 3/4), Find 2u→ +4w→

A. (-6, 1 1/2)
B. (-24, 3 1/2)
C. (-5, 1 1/4
D. (-6, 4)

Answer 1

2(-7, 1/2) + 4(2, 3/4) = (-14, 1) + (8, 3) = (-6, 4)

Answer: D. (-6, 4)