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Question 1 of 5: Find the center-radius form:
$$x^2 + y^2 - 14x - 2y + 1=0$$
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Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Cool Emoji
A
$$(x - 7)^2 + (y - 1)^2=169$$
B
$$(x - 7)^2 + (y - 1)^2=49$$
C
$$(x - 1)^2 + (y + 5)^2=49$$
D
$$(x - 1)^2 + (y + 5)^2=196$$
E
$$(x + 7)^2 + (y + 3)^2=96$$
Question 2 of 5: Find the center-radius form:
$$4x^2 + 4y^2 + 80x + 56y + 496=0$$
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A
$$(x + 10)^2 + (y + 7)^2=25$$
B
$$(x - 8)^2 + (y - 7)^2=9$$
C
$$(x + 10)^2 + (y + 7)^2=625$$
D
$$(x + 9)^2 + (y - 3)^2=25$$
E
$$(x + 8)^2 + (y + 4)^2=81$$
Question 3 of 5: Find the center and radius:
$$x^2 + y^2 - 22x - 24y + 249=0$$
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A
Center:(-2,1), Radius:14
B
Center:(11,12), Radius:16
C
Center:(1,13), Radius:81
D
Center:(11,12), Radius:4
E
Center:(3,5), Radius:5
Question 4 of 5: Which equation matches the graph:
Graphing a circle with a center of (-3,4) and a radius of 5
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A
$$(x - 7)^2 + (y + 4)^2=81$$
B
$$(x - 3)^2 + (y - 1)^2=16$$
C
$$(x + 3)^2 + (y - 4)^2=25$$
D
$$(x + 3)^2 + (y + 1)^2=19$$
E
$$(x + 5)^2 + (y - 1)^2=49$$
Question 5 of 5: Find the center-radius form:
A circle has a diameter with endpoints (-2,2) and (20,2).
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Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Cool Emoji
A
$$(x - 7)^2 + y^2=5$$
B
$$(x - 3)^2 + (y - 1)^2=64$$
C
$$x^2 + (y - 2)^2=81$$
D
$$(x - 3)^2 + (y - 1)^2=64$$
E
$$(x - 9)^2 + (y - 2)^2=121$$

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