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The midpoint of the segment joining points (a, b) and (j, k) is

a. ( j - a, k - b)
b. (j- a/2, k-b/2)
c. (j+a, k+b)
d. ( j+a/2, k+b/2)

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Mdali9868303938id

Answer:

(a,b) is the mid-point of Line segment joining the points A(10,−6) and B(k,4)

So,

a=

2

10+k

and b=

2

−6+4

=−1

It is given that,

a−2b=18

Put b=−1

a−2(−1)=18

a=18−2=16

Now,

a=

2

10+k

16=

2

10+k

k+10=32

k=22

Step-by-step explanation:

it is good

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