PAGE 5

3.2

1. : xx yy

.2.

.

, , , -

.

.

3.

(x, y) ,

(x, y) .

. (x, y) x , y -

.

x (x, y)

y

xx yy 4.

5.

, y x.

(x, y).

1.

(x, y) :

1 ,

2

3

4

xx 0

yy 02.

(x, y) xx : d(M , xx) = |y|

yy : d(M , yy) = |x|

3.

(x1 , y1) , (x2 , y2 ) =

4. x , y (x, y) , .

5.

:

x,

y,

,

1.

(0, 3) (4, 5). .

2. (1, 0) (0, 5). 3.

) (23, 9), yy.) (5, 3 + 2) , xx.

4.

, ) (4, 6) (4, 10) ) (12 1) (4, 1) ) (3, 5) (2, 6)5.

(23, 5 + 6), 1 .

6.

(53, 2+ 8), ) 2 ) 3 ) 4 .

7.

< 0 > 0, : (, ) , (, ), (, ).8.

, x y 4 .

9.

, x y .

10. ) (2 + 3 , 5) (5 + 6 , 5) yy, .) ( 2 + 3 , 2) (4 , 3 + 4) , .

) (2 + 3 , 1) (2, 3) x. 11.

) (2 , 4) 2 4

) (2 , 3) 2

) yy 0

) xx 0

) ( 2, 3) (2 , 3) x ) ( 2, 5), ( , 5) y12 .

y = ( 821)x + 4 (1 , 35), .

13.

y = x + (0 , 4) (2 , 1), . 14.

y = x2 2 ( x ( 2

) x

) x

15 . (1, 2) , (4, 2) (3, 5) .

16.

(0, 2), (1, 1) (4, 0) .

17 .

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