Question

Let u = <-7, -2>. Find 8u.

**** medal & fan!!

Answer 1

8 is a scaling factor.

Answer 2

by definition, the requested vector, is:
\[\Large < - 7 \cdot 8, - 2 \cdot 8 > =...?\]

Answer 3

It basically extends the length of the vector's components. All you have to do is multiply 8 to each component.

Answer 4

<-56,-16>