1. **State the problem:** Find the slope and y-intercept for each given linear equation.
2. **Recall the slope-intercept form:** The equation of a line in slope-intercept form is $$y = mx + b$$ where $m$ is the slope and $b$ is the y-intercept.
3. **Problem 20, first equation:** $$y = \frac{3}{2}x - 2$$
- The slope $m$ is the coefficient of $x$, which is $\frac{3}{2}$.
- The y-intercept $b$ is the constant term, which is $-2$.
4. **Problem 20, second equation:** $$y = -\frac{3}{4}x + 6$$
- The slope $m$ is $-\frac{3}{4}$.
- The y-intercept $b$ is $6$.
5. **Problem 21:** Given equation $$7x - y = 3$$
- Rearrange to slope-intercept form by isolating $y$:
$$7x - y = 3$$
$$-y = 3 - 7x$$
$$y = -3 + 7x$$
- Rewrite as $$y = 7x - 3$$
- The slope $m$ is $7$.
- The y-intercept $b$ is $-3$.
**Final answers:**
- For $y = \frac{3}{2}x - 2$: slope = $\frac{3}{2}$, y-intercept = $-2$
- For $y = -\frac{3}{4}x + 6$: slope = $-\frac{3}{4}$, y-intercept = $6$
- For $7x - y = 3$: slope = $7$, y-intercept = $-3$
Line Slopes 951852
Step-by-step solutions with LaTeX - clean, fast, and student-friendly.