Question

point q is the midpoint on line segment pr. the coordinates of point P are (-5, -3) and the coordinates of point Q are (-2, -6)

What is the y coordinate of point R?

Answer 1

Answer:

The y coordinate of point R is  $-9$

Step-by-step explanation:

we know that

The formula to calculate the midpoint between two points is equal to

$M(x,y)=(\frac{x1+x2}{2},\frac{y1+y2}{2})$

In this problem

$R(x2,y2)$

$Q(-2,-6)=(\frac{-5+x2}{2},\frac{-3+y2}{2})$

so

$-2=(-5+x2)/2$ --->$x2=-4+5=1$

$-6=(-3+y2)/2$ --->$y2=-12+3=-9$

therefore

The y coordinate of point R is  $-9$