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17 May, 08:37

Write the equation of a circle that has a center at the origin and a radius with a length of 4 inches

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Answers (2)
  1. 17 May, 08:45
    0
    (x) ^2 + (y) ^2 = 4^2

    Step-by-step explanation:

    The standard form of an equation for a circle is

    (x-h) ^2 + (y-k) ^2 = r^2

    where (h, k) is the center and r is the radius

    Since the center is 0,0 and the radius is 4

    (x) ^2 + (y) ^2 = 4^2
  2. 17 May, 12:21
    0
    x^2+y^2=16

    Step-by-step explanation:

    x^2+y^2=r^2 is the mother function of the equation of a circle centered at r with radius r

    since r is defined to be 4 and 4^2 is 16 therefore, the equation would then be

    x^2+y^2=16
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