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Show What You Know About i and Equations of Circles
By Mike Ritter
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Last updated about 8 years ago
5 questions
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Question 1
1.
What is (3 + 2i) (4 + 4i)
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Question 2
2.
Question 3
3.
Write the equation of a circle with a center at (-5, 4) and a radius of 4.
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Question 4
4.
What is the radius of a circle with a center at (4, 2) and has (2, 4) on the circle.
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Question 5
5.
5
i
is equal to -5.
True
False
The center and the radius of :(x-5)^2 + (y+7)^2 =9 is...
A (5,-7), r=9
B (-5, 7), r=9
C (-7, 5), r=3
D (5, -7), r=3