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13 March, 20:45

What is the equation for a circle with center (2, - 3) and radius of 6?

Question 5 options:

(x + 2) 2 + (y + 3) 2 = 36

(x - 2) 2 + (y + 3) 2 = 6

(x - 2) 2 + (y + 3) 2 = 36

(x - 2) 2 + (y - 3) 2 = 36

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Answers (1)
  1. 13 March, 21:07
    0
    The general formula for a circle is:

    x^2 + y^2 = r^2

    Since the r^2 = 36, we know the first two options are incorrect

    If the circle's centre is at (2, - 3), the numbers being squared should be the negative of the coordinate

    So, the final answer is (x-2) ^2 + (y+3) ^2 = 36
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