(a)Vds=Vgs>Vgs-Vt.Hence active region operation
0.2*Vgs^2+0.6*Vgs-9.8=0
(b)Vgs = 5.66 V or -8.66 V
Since 0<Vgs<10, Vgs = 5.66 V
(c)Vds = Vgs = 5.66 V
(d)Id = 4.34e-003 A 