Same eigenvalue but different direction fields

60 Views Asked by At

Determine which direction field corresponds to each linear system

enter image description here

enter image description here enter image description here

When I solve for the eigenvalues of the two linear systems I get both to be the imaginary number $i$ so the direction fields should look the same but they don't. The answer is $1=B$ and $2=C$ but I do not understand what makes them different?

I would appreciate if someone could explain how to obtain this answer. Thank you!

1

There are 1 best solutions below

1
On BEST ANSWER

If you consider the point $\binom {5}{0}$ and compare the two vevtor fields at that point you notice that for (1) you have $\binom {5}{10}$ which corresponds to $B$ and for $(2)$ it is $\binom {5}{-10}$ which corresponds to $(C)$