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OpenStudy (anonymous):
Use the Distance Formula and the x-axis of the coordinate plane. Show why the distance between two points on a number line (the x-axis) is | a – b |, where a and b are the x-coordinates of the points.
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OpenStudy (anonymous):
is there a picture for this?
OpenStudy (anonymous):
No. Sorry.
OpenStudy (anonymous):
I'm just really confused.
OpenStudy (anonymous):
Absolute value is used because the points might be negative. For example, the distance between points -8 and 15 would be 23. This is because absolute value -8 + absolute value 15 = 23. Do you understand now?
OpenStudy (anonymous):
@Stella.anderson ?
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