Determining slope and Y-Int

So... I've been away from the math world for sometime and I need some help here.

I have this graph:

http://209.85.12.227/1318/19/upload/p9708298.gif

And I need to determine the slope and y intercept on it, can someone please tell me how I would do that in good detail so I can remember this stuff? :)

Edit: Hahha I think I remembered, for slope would this be right...

m= (6, 3) / (8, 2) = 0.5

So would 0.5 be the slope if I used those two points?

Still forgot how to find Yint though haha.

Thanks!