I need help for my homework. I need help when i 'll solve this circuits with full solution with walkthrough. Can you solve this with all walkthrough and upload your answer?

 

Have a look here http://www.electronics-tutorials.ws/amplifier/mosfet-amplifier.html you should be able to work out the answers.

 

This is YOUR homework, so you need to post your best effort so far at solving the problem, then perhaps we can give guidance.

 

Hint: You need to show us your best effort. This is not Homework Done For You.

 

without knowing the specific jfet, no solution.