Q10 of 40 Page 1

If A ( ,5) is the mid-point of the line segment joining the points Q (– 6, 7) and R ( – 2, 3), then the value of is

If M(x, y) is the midpoint of the segment joining two points A(x1, y1) and B(x2, y2), then


By Midpoint formula,



Therefore, the midpoint of segment joining points Q (-6, 7) and R (-2, 3) is




∴ A ≡ (-4, 5)


But



∴ m = (-4) × 3


∴ m = -12


Hence, option a is the correct answer.

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