1. **State the problem:** Find the equation of the line passing through points $(-7, -3)$ and $(-2, 4)$.
2. **Formula used:** 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 line equation in slope-intercept form is
$$y = mx + b$$
where $b$ is the y-intercept.
3. **Calculate the slope:**
$$m = \frac{4 - (-3)}{-2 - (-7)} = \frac{4 + 3}{-2 + 7} = \frac{7}{5}$$
4. **Find the y-intercept $b$:** Use point $(-2, 4)$:
$$4 = \frac{7}{5} \times (-2) + b$$
$$4 = -\frac{14}{5} + b$$
Add $\frac{14}{5}$ to both sides:
$$4 + \frac{14}{5} = b$$
Convert 4 to fraction with denominator 5:
$$\frac{20}{5} + \frac{14}{5} = b$$
$$\frac{34}{5} = b$$
5. **Write the final equation:**
$$y = \frac{7}{5}x + \frac{34}{5}$$
This matches the approximate y-intercept near 6 and the positive slope.
Line Equation 1151A3
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