The question and data are below. I put this as chemistry but a chemist could not answer it because it is constructing a graph with data provided. I think it fits into the mathematics option so I put it here :)) thx for the help by the way.



SOLUTION:
First we plot the graph of Temp vs Volume of air
Part A)Using desmos online graphing tool, the above is obtained as regression
[tex]\begin{gathered} y=\text{ 0.0154625x + 4.63602} \\ \text{hence, because x represents volume, when x=0} \\ y=\text{ 4.63602}\degree C^{} \end{gathered}[/tex]First we plot the graph of Temp vs Volume of (N2/H2/He)