SOLUTION: The point P is on the unit circle. Find P(x, y) from the given information. The y-coordinate of P is −1/9,and the x-coordinate is positive. Please Help me !

Algebra ->  Trigonometry-basics -> SOLUTION: The point P is on the unit circle. Find P(x, y) from the given information. The y-coordinate of P is −1/9,and the x-coordinate is positive. Please Help me !      Log On


   



Question 1015613: The point P is on the unit circle. Find P(x, y) from the given information.
The y-coordinate of P is −1/9,and the x-coordinate is positive.
Please Help me !

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
The point P is on the unit circle. Find P(x, y) from the given information.
The y-coordinate of P is -1/9, and the x-coordinate is positive.
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The unit circle is x%5E2+%2B+y%5E2+=+1
Sub -1/9 for y
x%5E2+%2B+1%2F81+=+1
x%5E2+=+80%2F81
x+=+4%2Asqrt%285%29%2F9