Question

Draw the circle ( x − 1 ) 2 + ( y + 2 ) 2 = 9

Answer 1

The required circle will have a radius of 3 units and centre at (1, -2)

Equation of a circle

The standard equation of a circle is expressed as shown;

(x-a)^2+(y-b)^2 = r^2

where

(a, b) is the centre of the circle

r is the radius of the circle

Given the equation of the circle below;

(x − 1)^2 + (y + 2)^2 = 9

(x − 1)^2 + (y + 2)^2 = 3^2

Find the centre and radius

centre = (1, -2)

radius = 3

This shows that the required circle will have a radius of 3 units and centre at (1, -2)

Learn more on equation of a circle here: brainly.com/question/14150470

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