Read the following SAT test question, then click on a button to select your answer.
On a number line, x represents a number that is within 2 units of 12. Which of the following describes this relationship?
A. |x + 2| < 12
B. |x + 12| < 2
C. |x – 2| < 12
D. |x – 12| < 2
E. |12 – 2| < x
Answer is D
Here's Why:
The distance between x and 12 is |x – 12|. If x is within 2 units of 12, then the distance between x and 12 is less than 2. Therefore, this relationship is represented by |x – 12| < 2.
Difficulty: Hard
Question Type: Standard Multiple Choice
(Mathematics)
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