Project 9 related question

I am not able to get the MOFSET to activate by the DigitalOut Pin 9. If I apply direct positive voltage to the lead, it works.

I have printed out the value of Digital out from pin 9 and it seems to be correct. I have also applied power to the board by another 9 Volt battery thinking that my Raspberry PI is not supplying enough voltage to activate the MOFSET.

Is anyone else experiencing this?

Thanks,