Choice A is the correct answer. Use the slope formula and solve for $k$.

1. Formula: $m = \frac{y_2 - y_1}{x_2 - x_1}$
2. Substitute: $4 = \frac{k - 3}{4 - 2}$
3. Simplify: $4 = \frac{k - 3}{2}$
4. Solve: Multiply by 2 $\rightarrow 8 = k - 3$. Add 3 $\rightarrow k = 11$.

💡 Strategic Tip: Set up the equation with the unknown variable and solve it like any other algebra problem.

Choice B is incorrect because it might result from not multiplying by the run. Choice C is incorrect because it might result from addition errors. Choice D is incorrect because it might result from calculation errors.