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Which of the following points is on a circle if its center is (-13,-12) and a point on the circumference is (-17, -12)?

 

A  (-17,-13)

B  (-9, -17)

C  (-12, 13)

D  (-9, -12)

 Jan 26, 2019
 #1
avatar+100103 
+3

 

+8 

Which of the following points is on a circle if its center is (-13,-12) and a point on the circumference is (-17, -12)?

 

use the distance formula to find the distance between those 2 points, that is the radius.  Call it R

 

The formula for the circle witll be

 

\((x+13)^2+(y+12)^2=R^2\)

 

Plug the points in and see which one makes the formula true.

 Jan 26, 2019
 #2
avatar+10250 
+2

Which of the following points is on a circle if its center is (-13,-12) and a point on the circumference is (-17, -12)?

laugh

 Jan 26, 2019

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