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20 Aug 2012, 03:09
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A
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90% (00:23) correct
10%
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Of the five coordinates associated with points A, B, C, D, and E on the number line above, which has the greatest absolute value?
(A) A
(B) B
(C) C
(D) D
(E) E
Attachment:
ABCDE.png [ 7.63 KiB | Viewed 85775 times ]
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20 Aug 2012, 03:10
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SOLUTION
Of the five coordinates associated with points A, B, C, D, and E on the number line above, which has the greatest absolute value?
(A) A
(B) B
(C) C
(D) D
(E) E
Since the absolute value of a number indicates the distance of this number from zero, then we need to find a point which is farthest from zero. The farthest point from zero is A.
Answer: A.
Of the five coordinates associated with points A, B, C, D, and E on the number line above, which has the greatest absolute value?
(A) A
(B) B
(C) C
(D) D
(E) E
Since the absolute value of a number indicates the distance of this number from zero, then we need to find a point which is farthest from zero. The farthest point from zero is A.
Answer: A.
General Discussion
25 May 2016, 07:13
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Bunuel
Before attacking this question, we want to review what “absolute value” means. The absolute value of a number measures or is the distance that number is from zero on the number line.
Let’s say we are comparing the absolute values of -100 and 90; we’d say that -100 has THE GREATER ABSOLUTE VALUE. It has the greater absolute value because |-100| = 100 and |90| = 90. Notice that 100 is farther away from zero than 90 is.
In regard to this question, we can see that A (notice that A = 2) is farther from zero than any other answer choice. If we were to estimate E, we could say it’s about 1.8. That is slightly closer to zero than A is, because the distance of A from 0 is |-2| = 2.
Answer A.
