
Equations of Circles
Flashcard
•
Mathematics
•
10th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
Student preview

14 questions
Show all answers
1.
FLASHCARD QUESTION
Front
What is the standard equation of a circle?
Back
(x-h)² + (y-k)² = r², where (h,k) is the center and r is the radius.
2.
FLASHCARD QUESTION
Front
What do the variables h and k represent in the circle equation?
Back
h and k represent the x and y coordinates of the center of the circle, respectively.
3.
FLASHCARD QUESTION
Front
How do you find the center of a circle from its equation?
Back
The center can be found from the equation (x-h)² + (y-k)² = r² by identifying h and k.
4.
FLASHCARD QUESTION
Front
What is the radius of a circle in the equation (x-4)² + (y-2)² = 25?
Back
The radius is 5, since r² = 25, thus r = √25 = 5.
5.
FLASHCARD QUESTION
Front
What is the center of the circle in the equation (x+3)² + (y-1)² = 36?
Back
The center is (-3, 1).
6.
FLASHCARD QUESTION
Front
What is the radius of the circle in the equation (x-1)² + (y-3)² = 4?
Back
The radius is 2, since r² = 4, thus r = √4 = 2.
7.
FLASHCARD QUESTION
Front
How do you convert the general form of a circle's equation to standard form?
Back
Complete the square for both x and y terms to rewrite the equation in the form (x-h)² + (y-k)² = r².
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever
or continue with

Microsoft
%20(1).png)
Apple
Others
Already have an account?