(x – 1)2 + (y + 3)2 = 73 What is the radius ?

Question

(x – 1)2 + (y + 3)2 = 73
What is the radius ?

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Kennedy 1 week 2021-11-18T14:31:55+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-11-18T14:33:21+00:00

    Answer:

    radius = \sqrt{73}

    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

    (x – 1)² + (y + 3)² = 73 ← is in standard form

    with r² = 73 ( take the square root of both sides )

    r = \sqrt{73}

    0
    2021-11-18T14:33:25+00:00

    Answer: 73 – the radius

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