the point p is on the unit circle. find p(x, y) from the given information. the x-coordinate of p is − sqrt 5/4 , and p lies below the x-axis.

Question

the point p is on the unit circle. find p(x, y) from the given information. the x-coordinate of p is − sqrt 5/4 , and p lies below the x-axis.

Answer 1

Are any of the possible answer choices imaginary? Based on the question itself the x-coordinate would create a leg that is greater than 1 once you draw it as a right triangle in the unit circle. If you use Pythagoras theorem based on the information, the y-coordinate would have to be imaginary and negative since it is below the x-axis.

Answer 2

The unit circle is a circle of radius 1 centered at the origin. Write down the equation of this circle, plug in the given value for x and use the given information to solve for y.