Hi, I am a little bit confused about part b. If someone could please correct me, during my lesson, I learned that saturation means that the absolute value of Vds must be greater than the absolute value of (Vgs-Vt). From the circuit, I see that |-7.6| is greater than |-5-(-1.5)|. So I can assume saturation. However, when I try the formula, I get (0.5)(80)(-5-(-1.5))^2*(1+|0.02|)=480.2, which is supposedly incorrect.