we need to cheack each table for each we must check each pairs replacing on the equation
1)
x=-2
[tex]\begin{gathered} y=\frac{1}{2}(-2)-1 \\ y=-2 \end{gathered}[/tex]x=-1
[tex]\begin{gathered} y=\frac{1}{2}(-1)-1 \\ y=-1.5 \end{gathered}[/tex]x=0
[tex]\begin{gathered} y=\frac{1}{2}(0)-1 \\ y=-1 \end{gathered}[/tex]x=1
[tex]\begin{gathered} y=\frac{1}{2}(1)-1 \\ y=-0.5 \end{gathered}[/tex]x=2
[tex]\begin{gathered} y=\frac{1}{2}(2)-1 \\ \\ y=0 \end{gathered}[/tex]all pairs in the first table match so the correct option is the first