What is the standard equation of a circle with center (h, k) and radius r?
Unit 6 Review: Circles

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Mathematics
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
2.
FLASHCARD QUESTION
Front
How do you find the center of a circle given the endpoints of its diameter?
Back
3.
FLASHCARD QUESTION
Front
Back
4.
FLASHCARD QUESTION
Front
What does the term 'diameter' refer to in a circle?
Back
The diameter is the longest distance across the circle, passing through the center, and is twice the radius.
5.
FLASHCARD QUESTION
Front
If a circle has a center at (2, -1) and a radius of 3, what is its equation?
Back
6.
FLASHCARD QUESTION
Front
What is the relationship between the radius and diameter of a circle?
Back
7.
FLASHCARD QUESTION
Front
How do you determine if a point (x, y) lies inside, on, or outside a circle?
Back
Substitute (x, y) into the circle's equation. If the result is less than r^2, it's inside; equal to r^2, it's on; greater than r^2, it's outside.
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