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MAT - Conics - Circles & Ellipses
供稿人: Plesek
(原作者: Crouch)
What is the center of the circle?
What is the radius of the circle?
(x+2)2 +(y-5)2 =16
(
,
)
What is the center of the circle?
What is the radius of the circle?
(x-4)2 +(y-6)2 =25
(
,
)
What is the center of the circle?
What is the radius of the circle?
(x+8)2 +(y+5)2 =100
(
,
)
What is the length of the semi-minor axis?

9

x2 +y2 =1

9     36

  3

  6

  36

What is the length of the semi-major axis?

9

x2 +y2 =1

9     36

  3

  6

  36

 

Classify each shape as a circle, ellipse or hyperbola.

x2 - y2 = 1

3     9

x2 + y2 = 49

x2  + y2  =1

4      9

What are the coordinates for the center of the ellipse?

(x-1)2 +(y+4)2 =1

   4           9

(
,
)

36

What is the length of the minor axis?

x2 + y2 =1

9      36

12

9

6

36

What is the length of the major axis?

x2 +y2 =1

9     36

12

9

6

What is the equation of the circle?

x2 + y2 = 4

x2 + y2 =16

x2  +  y2  = 
What is the equation of the ellipse?
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