
Circle Equations and Properties
Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Thomas White
FREE Resource
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7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the standard form of the equation of a circle centered at the origin?
x + y = r^2
x^2 + y^2 = r^2
x^2 + y^2 = r
x^2 + y = r^2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a circle has a radius of 4, what is its equation?
x^2 + y^2 = 8
x^2 + y^2 = 16
x^2 + y^2 = 4
x^2 + y^2 = 2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How might the equation x^2 + y^2 = 16 be alternatively written?
x^2 + y^2 = 4
x^2 + y^2 = 8
x^2 + y^2 = 4^2
x^2 + y^2 = 2^2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the radius of a circle with the equation x^2 + y^2 = 9?
5
3
2
4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you verify if a point lies on a circle with equation x^2 + y^2 = 169?
Ensure x and y are both less than 169
Calculate the distance from the origin
Check if x + y = 169
Substitute the point into x^2 + y^2 and see if it equals 169
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the radius of a circle if the hypotenuse of a right triangle with sides 6 and 8 is the radius?
6
12
8
10
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the circumference of a circle with equation x^2 + y^2 = 64?
8π
16π
32π
64π
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