12. What is the equation of a circle with center (-7, -3) and radius 2?

Question

12.
What is the
equation of a circle with center (-7, -3) and radius 2?

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Trung Dũng 1 year 2021-08-29T20:15:20+00:00 1 Answers 4 views 0

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    2021-08-29T20:16:36+00:00

    Answer:

    (x + 7)^2 + (y + 3)^2 = 4

    Step-by-step explanation:

    The standard equation of a circle is:

    (x – h)^2 + (y – k)^2 = r^2

    where (h, k) is the center and r is the radius. We can substitute the information given to obtain:

    (x + 7)^2 + (y + 3)^2 = 4

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )