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

The y coordinate of point R is
`-9`

Explanation:

we know that

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

`M(x,y)=((x1+x2)/(2),(y1+y2)/(2))`

In this problem

`R(x2,y2)`

`Q(-2,-6)=((-5+x2)/(2),(-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`