For the system \(G\left( s \right)H\left( s \right) = \frac{{K\left( {s + 6} \right)}}{{\left( {s + 2} \right)\left( {s + 4} \right)}}\), the root locus will have characteristics:
1
It has one asymptote.
2
It has an intersection with the jω-axis.
3
It has two real axis intersections.
4
It has two zeros at infinity.