[tex]y = - 1.2x[/tex]

1)

[tex]x = 3 \\ y = - 1.2 \times 3 = - 3.6[/tex]

[tex]x = - 2 \\ y = - 1.2 \times( - 2) = 2.4[/tex]

2)

[tex]y = 6 \\ - 1.2x = 6 \\ x = 6 \div ( - 1.2) \\ x = - 5[/tex]