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Name _____________________________
Date ___________________

Conics
(Answer ID # 0731530)
Find the focus and the directrix of the parabola. The vertex of the parabola is (0,0).

1.  
-12x  =  
1

2
y2

2.  
y - 10  =  
-1

32
x2 - 10

3.  
x  =  
1

40
y2

4.  
1

20
x2  =  y

5.  
x + 28  =  
-1

4
y2 + 28

6.  
-1

36
x2  =  y

7.  
y  =  
1

16
x2

8.  
-72x  =  6y2

9.  
1

48
x2  =  y

10.  
28y  =  x2

11.  
x - 69  =  
1

8
y2 - 69

12.  
x  =  
-1

44
y2

13.  
1

40
y2  =  x

14.  
-160y  =  5x2

15.  
y - 47  =  
-1

24
x2 - 47

16.  
-60x  =  5y2

17.  
x - 25  =  
-1

36
y2 - 25

18.  
y  =  
-1

8
x2

19.  
1

4
x2  =  y

20.  
x  =  
1

16
y2

21.  
x  =  
1

48
y2

22.  
6x2  =  120y

23.  
y + 9  =  
-1

28
x2 + 9

24.  
40x  =  y2


 


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