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: P(x, y)
3. (3, 4)

O
(3, 4)

1) B (4, 3)
2) C (-1, 1)
3) D (-3, 2)
4) E (-2, -3)
5) F (1, -5)
6) G (2, -3)

Understanding)
4.

8,

6), ( 8, 6), ( 8, 6) 8, 6) 1

1 4 A, B, C D
1 A
A)
5. b ab
55 0
a

1. A(a, 0) 2. B(0, a) 3. C( a, 0)
4. D(0, a) 5. E(b, 0) 6. F(0, b)
7. G( b, 0) 8. H(0, b) 9. I(a, b)
10. J(b, a) 11. K( a, b) 12. L( b, a)
13. M( a, b) 14. N(b, a) 15. O( b, a)

Doing)
6.
A(- , B( , C( , D( , E( , F( ,
G( , H( , I( , - J( , - K( , - L( , -
M( , - N(- , - O(- , - P(- , - Q(- , - R(- , -
S(- , T(- , U(- ,

7.

8.
9.
10.

11. 4

1 X
2
3 Y Y
4 XY
P X Y
(x, y) XY P(x, y)
X

(x, y) P