Question

What’s the endpoint if E is the midpoint of DF? F(5,8) E(4,3)

Answer 1

The coordinates of D would be (3, -2)

In order to find this, we need to know that the value of E's points will always be the average of D and F's points. This is because it is the midpoint. Therefore we can use the following formula.

Value of x

(D + F)/2 = E

(D + 5)/2 = 4

D + 5 = 8

D = 3

Then we can do the same for the y values

Value of y

(D + F)/2 = E

(D + 8)/2 = 3

D + 8 = 6

D = -2