Question

Find Endpoint from Midpoint and Endpoint

Aug 24, 10:38:25 PM
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The midpoint of AB is M(-5, -2). If the coordinates of A are (-3, 4), what are
the coordinates of B?
Answer:
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attempt 1 out of 2/ problem 1 out of max 5 pls help

Answer 1

The endpoint, B, is (-7, -8)

Explanation:

When I get a problem like this, the first thing I like to do is find the difference between the midpoint and the starting point.

In this problem it would be -5 - -3 = -2 and -2 - 4 = -6.

(-2, -6) is what will help us find the endpoint.

Take the midpoint, (-5, -2), and add those coordinates to it.

-5 + -2 = -7

-2 + -6 = -8

So our endpoint is (-7, -8)

Here is a graph, to help you visualize it.