Question2. The equation of a circle is $x^{2}+y^{2}=121$. Determine the radius. a. 10 units b. 12.1 units c. 11 units d. 22 units
3. Which point is on the circle with equation $x^{2}+v^{2}=26 ?$

Studdy Solution
Test potential points:
For example, test point $(3, 5)$:
$$3^2 + 5^2 = 9 + 25 = 34 \neq 26$$
Test point $(1, 5)$:
$$1^2 + 5^2 = 1 + 25 = 26$$
The point $(1, 5)$ is on the circle.