Question

1
Write the equation of a circle whose center is at (-11,–8) and whose radius is 4.

Answer 1

Explanation:

`(x_c,y_c)=(-11,-8) \quad r=4\\(x-x_c)^2+(y-y_c)^2=r^2 \quad (x+11)^2+(y+8)^2=4^2`