системи лінійних нерівностей

x ϵ [–5; +∞)

x ϵ (–5; +∞)

x ϵ (–5; 5]

x ϵ (–∞; –5)

2

1

0

-3

-2

-1

x ϵ (–7; –5)

x ϵ [–7; –5]

 x ϵ (–∞; –7)

 x ϵ (–5; +∞)

x ϵ (3; 7]

x ϵ (–3; 7]

x ϵ [–7; –3)

x ϵ (–∞; –3]

2

1

0

3

-2

-1

x ϵ (2; 13]

x ϵ (2; 13)

x ϵ (–∞; 13]

x ϵ (–∞; 2)

x ϵ (–∞; 1)

x ϵ (–∞; 1]

x ϵ (–∞; 3)

 x ϵ (–∞; 3]

x ϵ [1; +∞)

x ϵ (–∞; –1)

x ϵ (–1; 1]

x ϵ (–1; 1)

Не має

2

0

1

y є [ 2/3; 2 )

y є ( 2 ; + ∞ )

y є [ - 2/3; 2 )

y є (- 2/3; 2 ]

x є ( - ∞; 2 )

x є ∅

x є [ 2; ∞ )

x є ( 2; 4 )