Question

Use the information provided to write the equation of each circle. center: (3, -15) radius: 3

Answer 1

Equation of circle in general

• (x-h)²+(y-k)²=r²

For centre at (h,k)

So our equation is

• (x-3)²+(y+15)²=3²
• (x-3)²+(y+15)²=9