Posts Tagged ‘circle with a radius’

Problem 1123

Write the standard form equation of a circle with a center at (-3, 4) and a radius of 4.

 

Solution:-

 

Substitute the coordinates and write in standard form:

(x -h)2 + (y – k)2 = r2

 

So the equation is

=> (x +3)2 + (y – 4)2 = 42

=> (x +3)2 + (y – 4)2 = 16