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A circle has center O(−2, −4) and radius 10. Which of the following points is on the circle?


Hint: d equals square root of left parenthesis x sub one minus x sub two right parenthesis squared plus left parenthesis y sub one minus y sub two right parenthesis squared end square root

AV(8, −4)
BX(5, −2)
CY(−6, 0)
DZ(5, 7)

Verified Answer :

Tareki

the equation of of circle = (x+2)^2 + (x+4)^2 = 100 
by sub. by this points in the circle equation 
for point V(8,-4) 
(8+2)^2 + (-4+4)^2 = 100 
so the point V lay on the circle

apologiabiology

the equation of a cirecle with radius r and center at (h,k) is
(x-h)^2+(y-k)^2=r^2
r=10
center=(-2,-4)
(x+2)^2+(y+4)^2=10^2
(x+2)^2+(y+4)^2=100
(x,y)
sub given points (or use TI) and see if you get a true statmeent
A is on it

answer is A

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