Question

M is the midpoint of line segment CD. The coordinates M(-1,1) and C(1,-3) are given. Find the coordinates of point D.

Answer 1

The coordinates of point D are -4, 6.

Explanation:

Answer 2

All you have to do is use the formula for coordinates of a midpoint of a line segment. If the segment's ends are

A

=

(

x

A

,

y

A

)

and

B

=

(

x

B

,

y

B

)

, then the midpoint has coordinates:

Explanation: