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1.What is the equation of a circle with center (-2, 2) and radius 3?

User Hoss
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1 Answer

5 votes

Answer:

(x + 2)² + (y - 2)² = 3²

Explanation:

Equation of a circle is (x - a)² + (y - b)² = r²,

where a is the x-coordinate of the centre of the circle, b is the y-coordinate of the centre of the circle, r is the circle's radius.

So, we have (x - -2)² + (y - 2)² = 3²

subtract a minus means we add.

(x + 2)² + (y - 2)² = 3²

User Banjollity
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