Defining Continuity at a Point Practice Test

No; $s(3)$ exists but $\lim_{x\to3}s(x)=\infty$, so continuity fails.

No; $\lim_{x\to3}s(x)\ne s(3)$, so continuity fails.

Yes; $s(3)$ exists, $\lim_{x\to3}s(x)$ exists, and they are equal.

No; $\lim_{x\to3}s(x)$ does not exist, so continuity fails.

No; $s(3)$ is undefined, so continuity fails.