Question

The point P is on the unit circle. If the y-coordinate of P is -46, and P is in quadrant III , then what does x equal?

Answer 1

(-4/6)

Answer 2

if the point is on the unit circle then



x^2 + y^2 = 1

Answer 3

you are given y = -4/6. just need to solve for x

Answer 4

then make sure you identify what sign x will have in the context of this problem. for x to be a coordinate in quadrant III, the sign of x will have to be negative.

Answer 5

I got -.754 which would round off to .75, did I do it correctly?

Answer 6

.745 , sorry!

Answer 7

yes when rounded -0.745 is approximately what the x coordinate is

Answer 8

Thanks a lot! I was over thinking what I had to do.

Answer 9

you did great !