AlgebraEasy–MediumValue that makes an expression negative
Algebra practice question
For which of the following values of x is the expression 4 − x/2 negative?
- A. 10Correct
- B. 8
- C. 6
- D. 0
Answer: A. 10
4 − x/2 < 0 means x/2 > 4, so x > 8. Of the choices, only 10 is greater than 8: 4 − 5 = −1.
Why the other answers are wrong
- B. 8
- 4 − 8/2 = 0, which is not negative.
- C. 6
- 4 − 6/2 = 1, positive.
- D. 0
- 4 − 0 = 4, positive.
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