[tex]\begin{gathered} y=mx+b \\ \text{where} \\ m=\text{slope} \\ b=y-\text{intercept} \end{gathered}[/tex][tex]\begin{gathered} m=15 \\ b=-1 \\ y=15x-1 \\ \text{when x=1} \\ y=15(1)-1=14 \\ \\ \text{when x=2} \\ y=15(2)-1=30-1=29 \\ \\ \text{when x=3} \\ y=15(3)-1=44 \end{gathered}[/tex]
The coordinates can be
[tex](1,14)(2,29)(3,44)[/tex]
