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14-01-2017
Mathematics

contestada

A circle has center O(−1, −3) and radius 5. Which of the following points is on the circle?

V(2, 1)
X(−3, 7)
Y(5, 0)
Z(6, 7)

Respuesta :

doodle10 doodle10

14-01-2017

Answer = V (2,1)

Because:

The equation of the circle is
(x+1)² + (y+3)² = 25
(2+1)² + (1+3)² = 25
3² + 4² = 25
9 + 16 = 25
25 = 25

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