Question

The value of a , for which point P( a/2 , 2) is the midpoint of the line segment joining the points
Q( -5, 4 ) and R( -1, 0) is ---------------

Answer 1

Answer:

a = - 6

Step-by-step explanation:

Coordinates of a midpoint is

P ( $\frac{x_{1} +x_{2} }{2}$ , $\frac{y_{1} +y_{2} }{2}$ )

$\frac{-5 - 1}{2}$ = $\frac{a}{2}$ ⇒ a = - 6