SOLUTION: how long is the line that joins the points A (2,1) and B (8,2)?
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Question 393644: how long is the line that joins the points A (2,1) and B (8,2)?
Answer by jsmallt9(3758) (Show Source): You can put this solution on YOUR website!
Lines have infinite length, including the line that passes through A and B.
But if the problem is to find the length of the line segment whose endpoints are A and B, then we can use the distance formula, :
which simplifies as follows:
So the distance between A and B (or the length of line segment AB) is .
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