Пожалуйста 999 прошу

I....I....I...I...I...I...I....I...I...I...I....I            -8 < y < 3 -8                                0          3 I..I..I..I..I..I..............I...............I            0,4 < y < 3 0   0.4     1                             3 I.......I.......I                                           -2 < y< 0             -2             0