Equations of Circles
Authored by Debra Bernal
Mathematics
9th Grade
CCSS covered
Used 3+ times
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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the equation of the circle with a radius of 5 and center at (2, 3)?
(x + 2)2 + (y + 3)2 = 25
(x + 2)2 + (y + 3)2 = 5
(x − 2)2 + (y − 3)2 = 25
(x − 2)2 + (y − 3)2 = 5
Tags
CCSS.HSG.GPE.A.1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the radius of the circle given the equation x²+y²-10x+8y-23=0?
r=64
r=8
r=
√23
r=
√41
Tags
CCSS.HSG.GPE.A.1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Given a circle with the equation
(x−2)2+(y+6)2=36 ,
which of the following represents the center and radius of the circle?
center (−2, 6); radius = 6
center (2, −6); radius = 6
center (−2, 6); radius = 36
center (2, −6); radius = 36
Tags
CCSS.HSG.GPE.A.1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A circle is represented by the equation
(x−1)2+(y+5)2=6 . Which of the following shows the location of the center of the circle and its radius?
center (1, -5); radius=
√6
center (1, 5); radius = 6
center (−1, −5); radius = 6
center (1, 5); radius =
√6
Tags
CCSS.HSG.GPE.A.1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A circle is represented by the equation x²+y²+4x+6y-36=0? . Which of the following shows the location of the center of the circle?
center (2, 3)
center (-2, -3)
center (4, 6)
center (−4, −6)
Tags
CCSS.HSG.GPE.A.1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which equation represents a circle whose center is located at (−6,2) and whose radius is √10 units?
(x+6)2+(y−2)2=10
(x−6)2+(y+2)2=10
(x+6)2+(y−2)2=√10
(x−6)2+(y+2)2=√10
Tags
CCSS.HSG.GPE.A.1
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