Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Which equation below best describes the circle
shown in the graph?
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2.
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Which of the below graphs best represents the equation  ?
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3.
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Determine the center and radius of the circle whose
equation is
 .
a. | center: (3,-1), radius = 49 | c. | center: (-3,1), radius = 7 | b. | center: (-3,1), radius = 49
| d. | center: (3,-1), radius = 7 |
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4.
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You have purchased a new farm. Your lawn will be
watered by central pivot irrigation, where sprinklers rotate around a central point. If the
line of sprinklers turning around the central pivot is 300 ft long, write an equation to model
the circular boundary of your sprinkler. Assume the center is (0,0).
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5.
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Given the standard formula of a circle is  , what is the
area of the circle?
(Hint:  )
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6.
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If the endpoints of a diameter of a
circle are (6, 2) and (0,2), what is the equation of the circle?
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7.
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What is the center of the circle described by the equation 
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a. | (4, -6) | c. | (-2, 3) | b. | (-4, 6) | d. | (2, -3) |
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8.
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Which graph below best describes the circle determined by the equation  ?
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