Creating an inverter from a 2 input NAND gate

[ineedhelpnow]

how would yo connect a 2 input nand gate to form a basic inverter?
i constructed a truth table. i know that the two middle ones don't count because the inputs have to be of the same value for an inverter. but what conclusion can i draw from this?
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[Ackbach]

Well, the basic inverter has only one input. So what are some ways you could convert a two-input device to a one-input device?

 

[ineedhelpnow]

so both of the inputs have to be the same so it equals one value on the inverter?

 

[Ackbach]

You're only allowed to use NAND gates and fanin and fanout. So try things, and see what the truth tables end up being. What happens if you just tie the two inputs of a NAND gate together? What's the resulting truth table? Is it what you want?