Question

How do you find the magnitude of <-7, -5>?

Answer 1

`|<-7,-5>|=sqrt(74)`

Explanation:

Remember the formula for the magnitude of a vector `vecv`.

`vecv=<x,y> => |vecv|=sqrt(x^2+y^2)`

Then we plug in

`|<-7,-5>|=sqrt((-7)^2+(-5)^2)=sqrt(49+25)=ul(sqrt(74))`