ThatQuiz Βιβλιοθήκη δοκιμασιών Εκτέλεση της δοκιμασίας τώρα
Circles in the Coordinate Plane
Συνεισφορά από: Ferguson
(Αρχικός συντάκτης: Crouch)
Center
(
Radius:
,
)
1.  What is the center     and radius for the      circle above?  
Radius:

x2 + y2 = 3

3
2.  What is the equation      for the circle?  

x2 + y2 = 9

2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10
Center
(
Radius:
3.  What is the center and radius for the equation 
     graphed here?
,
)
2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10

(x-5)2 + (y-4)2 = 9

4.  What is the equation      for the circle ?  

(x+5)2 + (y+4)2 = 9

5.  Given the center of a circle is (4, 3) and the        point (-2, 9) is on the circle, what is the       equation of the circle?
(x + 4)2 + (y + 3)2 = 72
(x - 4)2 + (y - 3)= √72
(x + 4)2 + (y - 3)= 72
(x + 4)2 + (y - 3)= √72
6.  Given the center of a circle is (-5, 2) and passesthrough the point (-2, -2), what is the equation of the circle?
(x + 5)2 + (y - 2)2 = 5
(x + 5)2 + (y + 2)= 25
(x + 5)2 + (y - 2)= 25

(x + 5)2 + (y + 2)= 5
7.  Given the center of a circle is (-6, -2) and the        a radius of 4, what is the equation of the circle?
(x + 6)2 + (y + 2)2 = 16
(x + 6)2 + (y + 2)= 4

(x - 6)2 + (y - 2)= 16
8. Determine the center and radius of the circle whose equation
is 
*Make sure you include the - sign if it is needed.
Center  (              ,              )

Radius
(x+2)2+(y-5)2=16
9. Determine the center and radius of the circle whose equationis
*Make sure you include the - sign if it is needed.
Center  (              ,              )

Radius
(x+7)2+(y+5)2=36
10. Determine the center and radius of the circle whose equationis 
*Make sure you include the - sign if it is needed.
Center  (              ,              )

Radius
x2+(y-2)2=49
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