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Which of the following is the equation of a circle with a radius of 2.5 and its center at (-4, 3)?

Question  options:

 

Question Options

 

A) (X - 4)^2 + (y + 3)^2 = 2.5

 

B) (X + 4)^2 + (y - 3)^2 = 2.5

 

C) (X - 4)^2 + (y + 3)^2 = 6.25

 

D) (X + 4)^2 + (y - 3)^2 = 6.25

 Jun 5, 2018
edited by JOKERdps  Jun 5, 2018
 #1
avatar+18337 
+2

Remember the equation for a circle with center  (h,k) and radius r is

 

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

 

so given the info in the question, this equals:

 

(x-(-4))^2 + (y-3)^2 = 2.5^2

(x+4)^2 + (y-3)^2 = 6.25

 Jun 5, 2018

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