The point P is on the unit circle If the ycoordinate of P is

The point P is on the unit circle. If the y-coordinate of P is 3/8, and P is in quadrant II, then x = Get help: Points possible: 10 This is attempt 1 of 2. Message instructor about this question

Solution

Solution

A unit circle is represented by,

x²+y²=1

putting y=3/8

x²= 1-(3/8)² = 55/64

or, x= - 55/8 = - 0.93 (as x is negative in II quadrant)