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January 26, 2015

January 26, 2015

Posted by **Kristina** on Sunday, December 2, 2012 at 12:38pm.

- Advanced Math -
**Reiny**, Sunday, December 2, 2012 at 12:47pmall points having a distance of 5 from (-1, -2) lie on a circle with equation

(x+1)^2 + (y+2)^2 = 25

you want the x to be 2

3^2 + (y+2)^2 = 25

(y+2)^2 = 16

y + 2 = ± √ 16 = ± 4

if y+2 = 4, then y = 2

if y+2 = -4, then y = -6

so your points are (2,2) and (2,-6)

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