Equations of Circles

Equations of Circles

Assessment

Assessment

Created by

Katherine Shockley

Mathematics

9th - 12th Grade

3K plays

Medium

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15 questions

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1.

Multiple Choice

1 min

1 pt

Write the equation of a circle with center (7, 0) with radius 3.

(x - 7)2 + y2 = 9

x2 + (y -7)2 = 9

(x - 7)2 + y2 = 3

x2 + (y -7)2 = 3

2.

Multiple Choice

45 sec

1 pt

What are the coordinates of the center and the radius of the circle with equation:

(x - 4)2 + (y - 3)2 = 25 ?

Center (4,3)

Radius = 5 units

Center (4,3)

Radius = 25 units

Center (-4,-3)

Radius = 25 units

Center (-4,-3)

Radius = 5 units

3.

Multiple Choice

45 sec

1 pt

Media Image

What is the equation of the circle?

(x+1)2 + (y +1)2 = 3

(x+1)2 + (y -1)2 = 3

(x+1)2 + (y +1)2 = 9

(x-1)2 + (y -1)2 = 9

4.

Multiple Choice

45 sec

1 pt

What is the center of the circle with this equation is (x+2)²+(y-4)²=41?

(-2,41)

(-2,4)

(2,-4)

(2,41)

5.

Multiple Choice

45 sec

1 pt

What is the radius of the circle

(x+7)²+(y-2)²=144?

7

12

24

144

6.

Multiple Choice

45 sec

1 pt

Media Image

What is the equation for this circle?

(x+1)2+(y+1)2=9

x2+y2=9

x2+y2=6

x2+y2=3

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