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Đáp án + Giải thích các bước giải:

`a,`

 \begin{array}{|x|}\hline \text{x}&\text{-2}&\text{-1}&\text{0}&\text{1}&\text{2}\\\hline \text{y}&\text{8}&\text{2}&\text{0}&\text{2}&\text{8}\\\hline\end{array}

Vậy `ĐTHS` đi qua các điểm `(-2;8), (-1;2), (0;0), (1;2), (2;8)`

`b,`

 \begin{array}{|x|}\hline \text{x}&\text{-2}&\text{-1}&\text{0}&\text{1}&\text{2}\\\hline \text{y}&\text{-4/3}&\text{-1/3}&\text{0}&\text{-1/3}&\text{-4/3}\\\hline\end{array}

Vậy `ĐTHS` đi qua các điểm `(-2;-4/3), (-1;-1/3), (0;0), (1;-1/3), (2;-4/3)`