Question

A circle has a radius of sqrt 45 units and is centered at (-2.4, -4.8) Write the equation of the circle

Answer 1

( x+ 2.4) ^2 + ( y+4.8) ^2 = 45

Explanation:

The equation of a circle can be written as

( x-h) ^2 + ( y-k) ^2 = r^2

Where ( h,k) is the center and r is the radius

( x-- 2.4) ^2 + ( y--4.8) ^2 = (sqrt45)^2

( x+ 2.4) ^2 + ( y+4.8) ^2 = 45