Question

Evaluate the following expression: 2(1,0) - 3(2,-1).
A. (-3,-2)
B. (2,3)
C. (2,-3)
D. (-4,3)

Answer 1

D. correct?

Answer 2

I'm trying to brush up on my vectors

Answer 3

Yes your answer is correct.

Answer 4

I've got another!

Answer 5

Let v = (1,-3) and w = (-2,6). Which of the following is true? Check all that apply.

A. The y-component of w is 6.
B. The x-component of v is -2.
C. v*w = 36
D. w = -2v

Answer 6

I was think A only!