The limit exists if and only if the left and right limits exist:
[tex]\begin{gathered} \lim _{x\to c}f(x)=L \\ if \\ \lim _{x\to c^-}f(x)=\lim _{x\to c^+}=L \end{gathered}[/tex]
The table isn't appropriate, the values from the right should be:
[tex]-6.99,-6.9,-6.8,\ldots[/tex]
Therefore, the answer is:
The table isn't appropriate, the x-values approaching from the right should not be positive
