Choice A is the correct answer. Set $y=0$.

1. Substitute: $0 = 2x - 8$
2. Add 8: $8 = 2x$
3. Divide: $x = 4$

💡 Strategic Tip: The x-intercept is the value of x when the line crosses the horizontal axis ($y=0$).

Choice B is incorrect because it is the y-intercept. Choice C is incorrect because of sign error. Choice D is incorrect because it is the slope.