Respuesta :

the answer is: 1° equation

[tex]-3x\text{ + 4y = 12}[/tex]

2° equation

[tex]y\text{ = }0.75x\text{ + 3}[/tex]

3° equation

[tex]X\text{ = }(-4,\text{ 0) + }\lambda(4,3)[/tex]

and the 4° equation

[tex]-3x\text{ + 4y - 12}=\text{ 0}[/tex]