Asked by Steve

Line pb is a line segment on a number line. It has endpoints at -2 and 12. What is the coordinate of its midpoint.

My answer would be the total length pf pb is 14 units so the midpoint would be 7.
Answered by Steve
the length is correct. But the midpoint is -2+7 = 5.

5 = -2+7 = 12-7
Answered by Ta'Reah
if three points a,b and c are collinear and b is between a and c then ab+bc=ac
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