Question

Point c is the midpoint of a segment ab. what are the cooridnates of b for each value of a and c?

a(-1,3), c(1,-1)

Answer 1

The coordinates of b are (3, -5)

Explanation:

`c(1,-1)`

`a(-1,3)`

`1=(-1+x)/(2)`

`2=-1+x`

`x=2+1`

`x=3`

`-1=(3+y)/(2)`

`-2=3+y`

`y=-2-3`

`y=-5`