Question

Point A is (-2, -7) and the midpoint is (2.5, -1. 5) so what is point B

Answer 1

B = (7,4)

Explanation:

To find the midpoint, take the two points add them together and divide by 2

let point B be (x,y)

First find the x point

(-2+x)/2 = 2.5

Multiply each side by 2

-2+x = 5

Add 2 to each side

-2+2+x=5+2

x = 7

Now find the y point

(-7+y)/2 = -1.5

Multiply each side by 2

-7+y = -3

Add 7 to each side

-7+7+y=-3+7

y = 4

B = (7,4)