The point P is on the unit circle. Find P(x, y) from the given informatie The x-coordinate of P is 12/13 and the y-coordinate is negative.

Krish Logan

Krish Logan

Answered question

2022-10-28

The point P is on the unit circle. Find P(x, y) from the given informatie The x-coordinate of P is 12 13 , and the y-coordinate is negative.

Answer & Explanation

jbaekk7q

jbaekk7q

Beginner2022-10-29Added 18 answers

x 2 + y 2 = r 2
we are given a unit circle
Unit circle has radius 1.
Hence becomes
x 2 + y 2 = 1
we are also given x coordnate = 12 13
hence
( 12 13 ) 2 + y 2 = 1 y 2 = 1 ( 12 13 ) 2 y 2 = 1 144 169 y 2 = 169 144 169 = 25 169 y = ± 5 13

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