Question

111)
K= 16 iv) k< 4
5. Point P (a/8, 4) is the mid point of the line segment joining the points A (-5,2)
and B(4,6).the value of a' is
i) -4 ii) 4
iii) -8 iv)-2.​

Answer 1

Mid-Point P (9/8,4)

A (-5, 2, ) B C4,6x2 42

Mid-Point=(x,tx2/2 4, t42/2/)

=(5+4/2 ,2+6/2)

=(-1/2,4

NOW, AP = BP

9/8= - 1/2

2 a=-8

a=-8 a=-8/2 4

a=-4