The characteristic equation of a control system is given as 1+ K(s+4)/s(s+7)(s2+2s+2)=0. The real axis intercept for root locus asymptote is?

The characteristic equation of a control system is given as 1+ K(s+4)/

1.	The characteristic equation of a control system is given as 1+ K(s+4)/s(s+7)(s2+2s+2)=0. The real axis intercept for root locus asymptote is?
A.	-2.25
B.	-1
C.	-1.67
D.	0
Answer» D. 0

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