Math Is Fun Forum

sologuitar

Member

Registered: 2022-09-19

Posts: 467

Find Coordinates of Point B

Plot the points A = (-1, 8) and M = (2, 3) on the xy-plane. If M is the midpoint of the line segment AB, find the coordinates of B.

Let me see.

Let A = (-1, 8) = (x_1, y_1)

We are given the midpoint coordinates to be (2, 3).

Let B = (x_2, y_2)

Here is my set up to find x_2:

2 = [(-1 + x_2)/2]

Here is my set up to find y_2:

3 = [(8 + y_2)/2]

Is this correct this far?

Bob

Administrator

Registered: 2010-06-20

Posts: 10,640

Re: Find Coordinates of Point B

Yes that will work.

B

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Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

sologuitar

Member

Registered: 2022-09-19

Posts: 467

Re: Find Coordinates of Point B

Yes that will work.

B

Ok. Sounds good. I will also work this out on paper. Wish I could upload pictures but without a computer or laptop it is nearly impossible.