1. y2+4xy+4x-6y-7=0
2. y2-4xy-8x+5y+9=0
3. y2-4xy-6x-8y+5=0
4. y2+4xy+4x+6y+9=0
y2+4xy+4x-6y-7=0
1. 2/3
2. 3/4
3. 4/5
4. 1/2
2/3
1. (a/e,0)
2. [-(a/e),0]
3. (-ae,0)
4. (ae,0)
(-ae,0)
1. 5:3
2. 3:2
3. 6:5
4. 4:3
4:3
1. 2
2. 4
3. 6
4. 8
6
1. (x-1)2+(y-2)2=25
2. (x-1)2+(y-2)2=7
3. (x+1)2+(y+2)2=25
4. (x+1)2+(y+2)2=7
(x-1)2+(y-2)2=25
1.
2.
3.
4.
1. (1,4)
2. (4,1)
3. (4,4)
4. (1,1)
(1,1)
1. 5/2
2. -5/2
3. 7/2
4. 3/2
3/2
1. -8
2. -6
3. 8
4. 6
-8