Question

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

(7,1)

(-5,2)

(-3,3)

(5,-2)

Answer 1

is this a vector?

Answer 2

yes.

Answer 3

multiply the scalar into the vector, and add it (a,b) + (c,d) = (a+c, b+d)

Answer 4

whats the scalar?

Answer 5

the number that's not the vector

Answer 6

thanks!