
Equations of Circles
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the center of the circle with the equation (x+2)²+(y-4)²=41?
Back
(-2, 4)
2.
FLASHCARD QUESTION
Front
What is the radius of the circle with the equation (x-5)²+(y+7)²=8?
Back
2√2
3.
FLASHCARD QUESTION
Front
In the equation (x+2)²+(y-3)²=4, what is the diameter of the circle?
Back
4
4.
FLASHCARD QUESTION
Front
What is the standard equation of a circle?
Back
(x-h)² + (y-k)² = r²
5.
FLASHCARD QUESTION
Front
In the circle represented by the equation (x-4)²+(y-3)²=25, what is the diameter?
Back
10
6.
FLASHCARD QUESTION
Front
What does the variable 'r' represent in the standard equation of a circle?
Back
The radius of the circle.
7.
FLASHCARD QUESTION
Front
What do the variables 'h' and 'k' represent in the standard equation of a circle?
Back
The x and y coordinates of the center of the circle.
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