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29 June, 06:25

What is the standard form of the equation for this circle?

A. - (x - 1) 2 - (y + 10) 2 + 4 = 0

B. (x - 1) 2 - (y + 10) 2 = 2

C. (x + 1) 2 + (y - 10) 2 = 4

D. (x - 1) 2 - (y + 10) 2 = 4

A (-1, 10)

Radius 2

+4
Answers (1)
  1. 29 June, 08:57
    0
    C

    Step-by-step explanation:

    The equation of a circle in standard form is

    (x - h) ² + (y - k) ² = r²

    where (h. k) are the coordinates of the centre and r is the radius

    here (h, k) = ( - 1, 10) and r = 2, thus

    (x - ( - 1)) ² + (y - 10) ² = 2², that is

    (x + 1) ² + (y - 10) ² = 4 → C
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