Question

need to find t such that (t, -7/9) is a point on the unit circle.

Answer 1

you'll need to solve this equation:
t^2 + (-7/9)^2 = 1.

since this is a quadratic in terms of t, you'll get two answers...
lemme know if you need help.

Answer 2

i can get the answer, but what is -7/9 squared?

Answer 3

-7/9 * -7/9 = 49/81

Answer 4

ty haha

Answer 5

yw