Question

Match the x-coordinates with their corresponding pairs of y-coordinates on the unit circle.
y=+- square root 5 over 3
y=+- square root 7 over 3
y=+- 3 over 3
y=+- 2 square root 2 over 2

Answer 1

@Hero

Answer 2

On a unit circle, \[x^2 + y^2 =1\]

Answer 3

@dohman16co

Answer 4

How do I solve then? @Hero

Answer 5

I have what I need to match to... But I've never been taught how to figure it out.

Answer 6

(4/5, y)
(1/3, y)
(square root2/3, y)
(2/3, y)

Answer 7

Input a y value into the formula I posted . Then solve for x.

Answer 8

I will post an example

Answer 9

That would help soooo much!