Question

The midpoint AB is M (-1,-5). if the coordinates of A are (2,-4) what are the coordinates of B?

Answer 1

(-4, -6)

Explanation:

Speaking how we are given the midpoint and one of the endpoints of this line segment we should be able to find the second endpoint using the formula to calculate the midpoint.

Formula to calculate the midpoint:


`m=(x+x^2)/(2)` &
`(y+y^2)/(2)`

`m=(x+x^2)/(2)`
Substitute and solve:

`m=(-6+-4)/(2) =-1`


`m=(y+y^2)/(2)`
Substitute and solve:

`m=(-6+-4)/(2)=-5`

Therefore your answer is (-4, -6).

I hope this helps.