SSAT Math Question 253: Answer and Explanation
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Question: 253
7. If x < 0, which of the following is greatest?
- A. 4x + 1
- B. x + 1
- C. x – 1
- D.
+ 1
Correct Answer: D
Explanation:
The answer is D
No matter what value x is, choice (D) will be 2 because a number divided by itself is 1, and 1 + 1 = 2. All of the other answers yield a negative number.
Plug in a number for x, such as x = -2, and determine the greatest value among the answer choices. Choice (D) is greatest. To be sure the same results will occur no matter what, try a weird value for x, such as -
. Choice (D) is still largest.