Question

Find the value of k, if P(4, -2) is the mid-point of the line segment joining the points A(5k, 3) and B(-k, -7). *

Answer 1

Answer:

the points A(5k, 3) and B(-k, -7).

P(4, -2) is the mid-point

{(5k - k)/2, (3 - 7)/2 } = (4,-2)

therefore,

(5k - k)/2 = 4

4k = 8

k = 2