Which are the center and radius of the circle with equation (x + 5) 2 + (y - 4) 2 = 9?

Question

Mathematics

Leland

19 March, 07:39

Which are the center and radius of the circle with equation (x + 5) 2 + (y - 4) 2 = 9?

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Answers (1)

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Archie · Answer 1

Center (-5,4) radius 3

Step-by-step explanation:

The standard equation of a circle is

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

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

so h=-5 in this case and k is 4

r^2=9 so r=3