# MOSFET: How can I find conduction parameter and transconductance based on graphs?

So I have my graphs (below) with various MOSFET characteristics. I don't know device dimensions or geometry, therefore I can't solve for the 2 directly with an equation. Otherwise I would just do that.

That being said, any ideas on how to solve for transconductance and the conduction parameter based on my graphs?

Conduction parameter:

Transconductance at the area shown above is approximately (9-7)volts/4 mA = ~500. At lower gate voltages, transconductance is more because the change in $$\I_D\$$ is less.