marla91 marla91
  • 28-08-2020
  • Mathematics
contestada

The midpoint of AB is M(4, -1). If the coordinates of A are (2,5), what are the
coordinates of B?

Respuesta :

Yang100
Yang100 Yang100
  • 30-08-2020

Answer:

(6, -7)

Step-by-step explanation:

(x, y)=(4, -1)

(x1+x2)/2=4

(y1+y2)/2=-1

-----------------

x1+x2=8

2+x2=8

x2=8-2=6

---------------

y1+y2=-2

5+y2=-2

y2=-7

---------------

(6, -7)

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