Question

Find the coordinates of the other endpoint of the​ segment, given its midpoint and one endpoint.​ (Hint: Let​ (x,y) be the unknown endpoint. Apply the midpoint​ formula, and solve the two equations for x and​ y.)

midpoint ​(11​,4​), endpoint ​(9​,1​)

Answer 1

by mid point formula,

`(9+x)/(2)=11 \\ \implies x= 13`

similarly,
`(1+y)/(2)=4 \\ \implies y,= 7`

endpoint is (13,7)