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Home Q & A Board Science-Related Homework Help Mathematics
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fodog414 fodog414
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Posts: 279
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9 years ago Edited: 9 years ago, fodog414
You must get all of the answers correct to receive credit.

1.  |x-2| <infinity
2.  |x-2| =< 9                              =< means less than or equal to
3.  |x-2| > 9
4.  |x-2| = 9
5.  |x-2| <9

A.  x can be any real number, i.e. it's in the interval (-infinity,infinity)
B.  x is in the interval [-7,11]
C.  x is in the interval (-7,11)
D.  x equals the points -7,11
E.  x is in the interval (-infinity,-7) U(11,infinity)

I've tried this problem numerous times to no avail, can anyone try to figure this out with me?
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4 Replies
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wrote...
#1
Educator
9 years ago
Keep in mind:

(7, 11) = 8, 9, 10
[7, 11] = 7, 8, 9, 10, 11

I believe A corresponds to the first one.
Answer accepted by topic starter
fodog414 Authorfodog414
wrote...
#2
Posts: 279
Rep: 26 0
9 years ago
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#3
9 years ago
The answer is A,B,D,E,C
wrote...
#4
Educator
9 years ago
That's great news. I marked your post as best answer.
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