Open Question: M is the midpoint of segment AB. Find the coordinates of B given A(0,3)and M(-3,7).?
11:57 Publicado por Nadim
7, -8
From A to M x co-ord goes from -1 to +3 a change of +4 in going halfway therefore add another +4 for B(x) = +7
Similarly y co-ord goes from +4 to -2 a change of -6. Add another -6 to midpoint M = -8 = B(y)
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