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Question: Order the real numbers 4, 7, - 1 and - 8 using number line.


A ) - 8 < - 1 < 7 < 4
B ) - 8 < - 1 < 4 < 7
C ) - 1 < - 8 < 4 < 7
D ) - 8 < 4 < - 1 < 7

Steps to derive

1 4, 7, - 1 and - 8
 [Original numbers.]

2 Representing the real numbers on a number line as:


3 From the number line, - 8 < - 1 < 4 < 7.
 [The numbers on a number line increase from left to right.]



Hence the right answer is Option B

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