How many integers satisfy (x − 0)(x − 4) < 0?
Answer and explanation
Correct answer: B. 3
- Step 1: The product is negative for 0 < x < 4. Step 2. The integers strictly between 0 and 4 number 3. Answer: 3. Why not the others: 4 is what you get if you include one endpoint. 5 is what you get if you include both endpoints. 2 is what you get if you drop one value.
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