144- The point $(a, b)$ lies on the curve $y = \dfrac{3x-1}{x+2}$. If $a, b \in \mathbb{Z}$, how many points with this property lie on this curve? (4) $4$ (3) $3$ (2) $2$ (1) $1$
\textbf{144-} The point $(a, b)$ lies on the curve $y = \dfrac{3x-1}{x+2}$. If $a, b \in \mathbb{Z}$, how many points with this property lie on this curve?
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(4) $4$ \hfill (3) $3$ \hfill (2) $2$ \hfill (1) $1$
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