Question

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.
Steve
the length is correct. But the midpoint is -2+7 = 5.

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