Answer
Since -8 is less than 0
(3, y) is not on the unit circle
(3, y) is not on the unit circle
↓Steps Explained:↓
Given a unit circle with coordinates (3, y),
calculate y
Unit Circle Formula
Given a unit circle point (x, y)
x2 + y2 = 1
Plug in x = 3 and y = y
32 + y2 = 1
9 + y2 = 1
Subtract 9 from each side:
y2 = 1 - 9
y2 = -8
Take the square root of each side:
√y2 = √-8
Final Answer
Since -8 is less than 0(3, y) is not on the unit circle
Related Calculators: Circle Equation | Circles | Annulus