Question: Which of the following is a solution to the inequality: x^2 - 4x < 0?

Options:

1. x < 0
2. 0 < x < 4
3. x > 4
4. x = 2

Correct Answer: 0 < x < 4

Solution:

Step 1: Factor the inequality: x(x - 4) < 0. Step 2: The critical points are x = 0 and x = 4. Step 3: Test intervals: (0, 4) is valid.