Question: Which of the following is a point-slope equation for a line with the point $(-2, 4)$ and a slope of $3$?
A. $y - 2 = 3(x - 4)$
B. $y - 4 = 3(x - 2)$
C. $y + 2 = 3(x - 4)$
D. $y - 4 = 3(x + 2)$
1. **State the problem:** We need to find the point-slope form of a line passing through the point $(-2, 4)$ with slope $3$.
2. **Recall the point-slope formula:** The point-slope form of a line is given by:
$$y - y_1 = m(x - x_1)$$
where $(x_1, y_1)$ is a point on the line and $m$ is the slope.
3. **Substitute the given point and slope:** Here, $x_1 = -2$, $y_1 = 4$, and $m = 3$. Substituting these values gives:
$$y - 4 = 3(x - (-2))$$
which simplifies to:
$$y - 4 = 3(x + 2)$$
4. **Compare with the options:**
- Option A: $y - 2 = 3(x - 4)$ (incorrect point values)
- Option B: $y - 4 = 3(x - 2)$ (incorrect $x$ value)
- Option C: $y + 2 = 3(x - 4)$ (incorrect signs and values)
- Option D: $y - 4 = 3(x + 2)$ (matches our derived equation)
5. **Conclusion:** The correct point-slope equation is option D.
**Final answer:** D. $y - 4 = 3(x + 2)$