Question

How do you find a=2b+c given b=<6,3> and c=<-4,8>?

Answer 1

`(8,14)`.

Explanation:

`a=2b+c=2(6,3)+(-4,8)`

`=(2xx6,2xx3)+(-4,8)`,

`=(12,6)+(-4,8)`,

`=(12-4,6+8)`.

`rArr a=(8,14)`.