
Unit 9 - Circles
Authored by Jure Mejia
Other
9th - 12th Grade
Used 3+ times

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23 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the center and radius of a circle with the equation x2 + y2 = 20
center: (0,0) radius: 2/5
center: (1,1) radius: 2√7
center: (0,0) radius: √20
center: (-1,-1) radius: 10
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Write the equation for a circle with center (-1,3) and radius 6.
(x - 1)² + (y + 3)² = 12
(x + 1)² + (y - 3)² = 36
(x - 1)² + (y - 3)² = 6
(x + 1)² + (y + 3)² = 36
(x - 1)² + (y - 3)² = 36
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Write the equation of the circle.
(x - 3)² + (y + 1)² = 9
(x - 3)² + (y + 1)² = 36
(x + 3)² + (y - 1)² = 36
(x + 3)² + (y - 1)² = 6
(x + 3)² + (y - 1)² = 9
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Write the equation of a circle with a center of (1, -5) and a radius of √5.
(x - 1)² + (y + 5)² = 5
(x + 1)² + (y - 5)² = 5
(x + 1)² + (y + 5)² = 5
(x - 1)² + (y - 5)² = 5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the center and radius of a circle with equation (x + 4)² + (y + 3)² = 16.
center: (-4,3), radius: 4
center: (4,3), radius: 4
center: (4,-3), radius: 16
center: (-4,3), radius: 16
center: (-4,-3), radius: 4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Write the equation of a circle centered at (2,-8) with a diameter of 8.
(x + 2)² + (y + 8)² = 16
(x - 2)² + (y - 8)² = 116
(x + 2)² + (y - 8)² = 64
(x - 2)² + (y + 8)² = 64
(x + 2)² + (y + 8)² = 4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the equation of a circle with center at (-2, -7) and a radius with endpoint (0,7).
(x - 2)^2 + (y + 7)^2 = 10
(x + 2)^2 + (y + 7)^2 = 100
(x + 2)^2 + (y - 7)^2 = 200
(x - 2)^2 + (y - 7)^2 = 49
(x + 2)^2 + (y + 7)^2 = 10
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