Step 3: The intervals to test are (-∞, 3), (3, 4), (4, 5), and (5, ∞). Choose a test point in each interval and substitute it into the inequality. For example, you could choose x = 2 for the first interval, x = 3.5 for the second interval, x = 4.5 for the third interval, and x = 6 for the last interval.