Question

Find the midpoint of CD
C=(1,9) and D=(7,-7)

Answer 1

(4, 1 )

Explanation:

given endpoints (x₁, y₁ ) and (x₂, y₂ ) , then the midpoint is

(
`(x_(1)+x_(2) )/(2)` ,
`(y_(1)+y_(2) )/(2)` )

here (x₁, y₁ ) = C (1, 9 ) and (x₂, y₂ ) = D (7, - 7 ) , then

midpoint = (
`(1+7)/(2)` ,
`(9-7)/(2)` ) = (
`(8)/(2)` ,
`(2)/(2)` ) = (4, 1 )