I'm using Linux Mint 18 Cinnamon on my new PC I built. It has an intel i7 chip with integrated graphics but I want to use my GeForce GTX graphics card to as my display. I'm fine using the Nouveau drivers but they don't show up in my Driver Manager. How can I install the appropriate Nouveau drivers on my computer? 
Using Nouveau drives on Linux Mint 18
linux mint;drivers;nvidia;nouveau
From my experience, you'll likely want to go with the drivers that NVidia actually provides to get the most out of your rig. Get your card's specific drivers here.If you would actually prefer Nouveau, instructions (old) are located here.