popcornseeds popcornseeds

25-09-2020
Mathematics

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The midpoint of AB is M=(-2, 1). One endpoint is A=(-8, 7).
Find the coordinates of the other endpoint, B.

PLEASE HELP ME

Respuesta :

mathstudent55 mathstudent55

25-09-2020

Answer:

B(4, -5)

Step-by-step explanation:

A(-8, 7)

M(-2, 1)

B(x, y)

x-coordinate:

(-8 + x)/2 = -2

-8 + x = -4

x = 4

y-coordinate:

(7 + y)/2 = 1

7 + y = 2

y = -5

B(4, -5)

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