1. (1, 6)
2. (1, -6)
3. (-1, 6)
4. (-1, -6)
(1, 6)
1. (1, 1)
2. at no point
3. (0, 1)
4. (1, 0)
(1, 0)
1. (1, 0), (-1, -4)
2. (0, -1), (-2, 3)
3. (2, 13), (-2, -3)
4. (1, 2), (1, -2)
(1, 0), (-1, -4)
1. (0, 0)
2. (0, a)
3. (0, b)
4. (b, 0)
(0, b)
1. (3-1/4, 3-3/4), (-3-1/4, -3-1/2)
2. (3-1/2, 3-2/5), (-31/5, -3-2/3)
3. (21/4, 2-2/5), (-31/2, -3-1/2)
4. None
(3-1/4, 3-3/4), (-3-1/4, -3-1/2)
1. (1, 0), (-1, -4)
2. (0, -1), (-2, 3)
3. (2, 13), (-2, -3)
4. (1, 2), (1, -2)
(1, 2), (1, -2)
1. (0, 1), (1, 2), (2, 1)
2. (0, -1), (-1, 2), (2, 1)
3. (0, 1), (1, -2), (2, -1)
4. (0, -1), (-1, 2), (-2, 1)
(0, 1), (1, 2), (2, 1)
1. (1, 1) only
2. (±1, 1)
3. (1, ±1)
4. (-1, 1) only
(±1, 1)
1. (0, 0), (2a, 2a)
2. (0, 0), (-2a, 2a)
3. (0, 0), (2a, -2a)
4. (0, 0), (-2a, -2a)
(0, 0), (-2a, -2a)
1. 9x-8y±26=0
2. 2x+9y±20=0
3. 2x+3y±26=0
4. 3x+y+6=0
2x+9y±20=0