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In the following exercises, (a) find the centre and radius, then (b) graph each circle.

(x+2)2+(y-5)2=4

Short Answer

Expert verified

The centre of circle is (-2,5) and radius is 2.

Step by step solution

01

Step 1. Given information

The given equation of circle is(x+2)2+(y-5)2=4

02

Step 2. Part (a) Find the centre and radius of circle.

(x+2)2+(y-5)2=22

On comparing with the standard form of equation (x-h)2+(y-k)2=r2,

h=-2k=5r=2

Therefore, the centre of circle is (-2,5) and radius is 2.

03

Step 3. Part (b) The graph of circle.

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