Answer:
√10
Step-by-step explanation:
Magnitude of a vector:
The magnitude of a vector v = <a,b> is given by:
[tex]|v| = \sqrt{a^2 + b^2}[/tex]
v=<-1,3>
Then:
[tex]|v| = \sqrt{(-1)^2 + 3^2} = \sqrt{1 + 9} = \sqrt{10}[/tex]
[tex]\sqrt{10}[/tex] is the magnitude of the vector.