Continuity Point
1. **Problem Statement:** Determine whether the function $f(x) = 3x - 1$ is continuous at $x = 2$.
2. **Recall the definition of continuity at a point $x = c$:**
A function $f$ is continuous at $x = c$ if:
$$\lim_{x \to c} f(x) = f(c)$$
This means the limit of the function as $x$ approaches $c$ must exist and equal the function's value at $c$.
3. **Step 1: Compute $f(2)$:**
$$f(2) = 3(2) - 1 = 6 - 1 = 5$$
4. **Step 2: Evaluate the limit $\lim_{x \to 2} f(x)$:**
Since $f(x) = 3x - 1$ is a polynomial (which is continuous everywhere), the limit is simply:
$$\lim_{x \to 2} (3x - 1) = 3(2) - 1 = 5$$
5. **Step 3: Compare the limit and the function value:**
$$\lim_{x \to 2} f(x) = 5 = f(2)$$
Since they are equal, $f$ is continuous at $x = 2$.
**Final answer:** The function $f(x) = 3x - 1$ is continuous at $x = 2$.