Question

11. The midpoint of is E(–1, 0). One endpoint is C(5, 2). What are the coordinates of the other endpoint?

can someone please explain how to do this problem

Answer 1

For the x-coordinate,
C is 6 units to the right of E

For the y-coordinate,
C is 2 units above E

So, since E is the midpoint, the other endpoint is
6 to the left and 2 below E, or (-7,-2)

Algebraically, you know that if the ends are C and D,

(Cx+Dx)/2 = Ex
(Cy+Dy)/2 = Ey, so

(5+Dx)/2 = -1
(2+Dy)/2 = 0

5+Dx = -2
Dx = -7

2+Dy = 0
Dy = -2

as shown above

Answer 2

thank you

Answer 3

did you use the midpoint formula