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Pani-rosa [81]
3 years ago
9

The midpoint of a segment is 19,5) and one of the endpoints is (13,81 What are the coordinates of the otherendpoint

Mathematics
1 answer:
artcher [175]3 years ago
5 0

Answer:

(25,-71)

Step-by-step explanation:

Given

(x,y) = (19,5) --- midpoint

(x_1,y_1) = (13,81) --- end 1

Required

The other endpoint

Using midpoint formula, we have:

(x,y) = 0.5 * [x_1 + x_2, y_1 + y_2]

So, we have:

(19,5) = 0.5 * [13 + x_2, 81 + y_2]

Multiply both sides by 2

2 * (19,5) = 2 * 0.5 * [13 + x_2, 81 + y_2]

(38,10) = [13 + x_2, 81 + y_2]

By comparison:

x_2 + 13 = 38 and y_2 + 81 = 10

So:

x_2 = 38 - 13

x_2 = 25

and

y_2 = 10 - 81

y_2 = - 71

Henc, the other endpoint is:

(25,-71)

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