The point P is on the unit circle. Find P(x, y) from the given information. The x-coordinate of P is 5/13, and the y-coordinate is negative.

Answer 1

To start with this point is in quadrant 4 ( x is + and y is -) By pythagorean’ theorem (5/13)^2 + y^2 = (1)^2

y=+/- 12/13

so coordinates are (5/13,-12/13)