1. **Problem:** Convert the line passing through points $(7, -1)$ and $(8, 2)$ into standard form and general form.
2. **Formula:** The slope $m$ of a line through points $(x_1, y_1)$ and $(x_2, y_2)$ is given by:
$$m = \frac{y_2 - y_1}{x_2 - x_1}$$
The slope-intercept form is:
$$y = mx + b$$
The standard form is:
$$Ax + By = C$$
where $A$, $B$, and $C$ are integers, and $A \geq 0$.
3. **Calculate slope:**
$$m = \frac{2 - (-1)}{8 - 7} = \frac{3}{1} = 3$$
4. **Find $b$ (y-intercept):** Use point $(7, -1)$:
$$-1 = 3 \times 7 + b$$
$$-1 = 21 + b$$
$$b = -1 - 21 = -22$$
5. **Slope-intercept form:**
$$y = 3x - 22$$
6. **Convert to standard form:** Move all terms to one side:
$$y - 3x = -22$$
Rewrite as:
$$-3x + y = -22$$
Multiply both sides by $-1$ to make $A$ positive:
$$3x - y = 22$$
7. **General form:** The general form is the same as standard form but often written as:
$$Ax + By + C = 0$$
Rewrite:
$$3x - y - 22 = 0$$
**Final answers:**
- Standard form: $$3x - y = 22$$
- General form: $$3x - y - 22 = 0$$
This process can be applied similarly to other points or slope-intercept parameters.
Line Standard Form 941Dd6
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