Answer :
2.
[tex]\begin{gathered} y=2x \\ y=3x-3 \\ 2x=3x-3 \\ 2x-3x=-3 \\ -x=-3 \\ x=3 \\ y=2\times3=6 \\ \text{This has one solution} \end{gathered}[/tex]3.
[tex]\begin{gathered} y=2x \\ y=2x-3 \\ 2x=2x-3 \\ 2x-2x=-3 \\ 0=-3 \\ \text{This has no solution} \end{gathered}[/tex]4
[tex]The\text{ fourth graph has one solution}[/tex]1.
The first graph has infinite solution.