Question

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.

P(x,y)=( ) what is the x cordinate? thank you

Answer 1

Nice question, a graph would be a good beginning

Answer 2

1 = x^2 + 1/81
1 - 1/81 = x^2
80/81 = x^2 x = sqrt( 80/81)
x = (4/9) sqrt(5)

Answer 3

It was a pleasure to help you