Linear Function 29679F
1. The problem is to analyze the function $f(x) = 2x - 1$.
2. This is a linear function of the form $f(x) = mx + b$, where $m$ is the slope and $b$ is the y-intercept.
3. The slope $m = 2$ means the function increases by 2 units vertically for every 1 unit increase horizontally.
4. The y-intercept $b = -1$ means the graph crosses the y-axis at the point $(0, -1)$.
5. To find the x-intercept, set $f(x) = 0$ and solve for $x$:
$$0 = 2x - 1$$
$$2x = 1$$
$$x = \frac{1}{2}$$
So the x-intercept is at $(\frac{1}{2}, 0)$.
6. Since this is a linear function, it has no extrema (no maximum or minimum points).
7. Summary:
- Slope: 2
- Y-intercept: $(0, -1)$
- X-intercept: $(\frac{1}{2}, 0)$
- No extrema
Final answer: The function $f(x) = 2x - 1$ is a straight line with slope 2, y-intercept at $(0, -1)$, and x-intercept at $(\frac{1}{2}, 0)$.