if p(-1,1 ) is the mid point of the line segment joining A(-3,6) and B (1,b+4) then b is
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A------------p---------------B
using section formula
for y axis
i.e y=(y1+y2)/2
1=(6+b+4)/2
2=10+b
b=-8
using section formula
for y axis
i.e y=(y1+y2)/2
1=(6+b+4)/2
2=10+b
b=-8
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0
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