I have my hdmi monitor plugged into my graphics card, but i recently bought another monitor from a garage sale for 5 bucks. This monitor only has VGA but my graphics card doesnt have an input for VGA. Could I dual screen with my hdmi monitor plugged into my graphics card and my VGA monitor plugged into my motherboard with integrated graphics?
Nope, you'd need a DVI-D/I to VGA adapter.
I tried to do that, unfortunately it didn't work.
What you can do is buy a DVI to VGA adaptor for your GPU and run the VGA monitor from that.