1.

If P(a/2,4) is the midpoint of the line segment joining the points A(-6, 5) and B(-2,3) then the value of a is(a) -8 (b) 3 (c) -4 (d) 4

Answer»

Correct answer is (a) -8

The point P\((\frac{a}{2},4)\) is the midpoint of the line segment joining the points A(-6,5) and

B(-2,3).

So \(\frac{a}{2}=\frac{-6-2}{2}\)

\(\Rightarrow \frac{a}{2}=-4\)

\(\Rightarrow\) a = -8



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