The graphs below shows three conventional ways of graphically presenting Boyle's law. As observed from the graphs below, the pressure increases with a decrease in volume, and vice versa. Pressure is inversely proportional to volume, so other parameters (temperature and amount of gas) are constant.
![enter image description here](https://i.sstatic.net/5foDB.png)
![enter image description here](https://i.sstatic.net/bliP7.png)
![enter image description here](https://i.sstatic.net/lc7cW.png)

Charles's law states that the volume of a gas increases with the temperature, and vice versa. The graphs below shows four conventional ways of graphically presenting Charles's law. Volume is directly proportional to temperature at a constant pressure,

[![enter image description here][1]][1]
[![enter image description here][2]][2]



  [1]: https://i.sstatic.net/JC4MJ.png
  [2]: https://i.sstatic.net/8oLcl.png