57.9k views
4 votes
Help asap please!!!!

The midpoint of AB is M (1, 3). If the coordinates of A are (-1, 5), what are the coordinates of B?

User HavanaSun
by
8.4k points

1 Answer

5 votes

Answer:

(3, 1)

Explanation:

Let the coordinates of B be (x, y)

Since, M is the midpoint of AB.

Therefore, by mid point formula:


1 = ( - 1 + x)/(2), \: \: \: 3 = (5 + y)/(2) \\ \\ 2 = - 1 + x, \: \: \: 6 = 5 + y \\ \\ 2 + 1 = x, \: \: \: 6 - 5 = y \\ \\ 3 = x, \: \: \: 1 = y \\ \\ x = 3, \: \: \: y = 1 \\ \\ B = (3, \: \: 1)

User Salik Saleem
by
7.8k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories