Answer:
The equation is x² + y² = 144.
Step-by-step explanation:
This works the same way as before.
You know that at the origin, it equals (0, 0). So, we have no need to insert values for h and k. Therefore, it will just be x² + y² = r².
R is your radius, and this is given as 12 units. So, r = 12. Therefore, r² = 144.
Your final equation is x² + y² = 144.
