Evaluate the expression: -1(5,-1) + 2(1,1).

A. (7,1)

B. (-5,2)

C. (-3,3)

D. (5,-2)

**not sure how to do this! :( Please explain? :D thank you :D

Question

Evaluate the expression: -1(5,-1) + 2(1,1).

A.       (7,1)

B.       (-5,2)

C.       (-3,3)

D.       (5,-2)

**not sure how to do this! :( Please explain? :D thank you :D

anonymous · Answer

@terenzreignz @Dido525 do y'all understand this? :)

terenzreignz · Answer

the number outside the parentheses is called a scalar.
distribute it among the numbers inside the parentheses.

anonymous · Answer

No

anonymous · Answer

ahh okay.. haha i kinda just thought of that like a second ago! LOL, but i wasn't sure  :P

so i get this?

(-5, 1) + (2, 2) ??

so i get (-3, 3) ?

so is the answer C?? :D

terenzreignz · Answer

Very good :)

anonymous · Answer

yay! thank you :)

anonymous · Answer

LOL. Yeah @terenzreignz  is correct :)

anonymous · Answer

yay! thank you :)