Common Source MOSFET Amp problem

[vermin]

Homework Statement

A CS amplifier utilizes a MOSFET with μ_nC_ox = 400 μA/V², W/L = 10, and V_A=10v. It is biased at I_D=0.2mA and uses R_D=6k.

Find R_in,A_VO,R_O

Homework Equations

V_AO= -gm(R_D||r_o)

R_o=R_D||r₀

The Attempt at a Solution

I drew out the equivalent circuit with hybrid-pi model. Doesn't seem to tell me much.

Not sure where to start. For the relevant equations above I'm missing gm and r_o. I have a feeling "it is biased at I_D=0.2mA" is a clue but I'm having trouble finding what that implies.

 

[vermin]

ok nevermind I just figured it out.