SOLUTION: what does it mean to find AB if A is 4 and B is 21? And how do you do this?? Thank youu.

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Question 809653: what does it mean to find AB if A is 4 and B is 21? And how do you do this?? Thank youu.
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
to find AB means to find the length or distance between points A and B on the number line, given that A=4 and B=21.
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Subtract A from B like so:
21 - 4 = 17
Answer:
AB = 17
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