SOLUTION: Struggling with understanding this. Not sure why, so please help. The point P(x,y) is on the unit circle in Quadrant IV. If x=sqrt11/6 , find y. Thanks.

Algebra ->  Trigonometry-basics -> SOLUTION: Struggling with understanding this. Not sure why, so please help. The point P(x,y) is on the unit circle in Quadrant IV. If x=sqrt11/6 , find y. Thanks.      Log On


   

Question 852483: Struggling with understanding this. Not sure why, so please help.
The point P(x,y) is on the unit circle in Quadrant IV. If x=sqrt11/6 , find y.
Thanks.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
The point P(x,y) is on the unit circle in Quadrant IV. If x=sqrt11/6 , find y.
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The radius is 1, so x%5E2+%2B+y%5E2+=+1 for all points.
y+=+sqrt%281+-+11%2F36%29+=+sqrt%2825%2F36%29
y = 5/6
Negative in Q4 --> y = -5/6