Respuesta :
2x + y ≤ 10
y ≤ - 2x + 10 → you can see the line in red
As the sign is ≤, you keep only the part below the red line, included the red line
2x - 4y < 8
- 4y < - 2x + 8
y > (- 2x + 8)/- 4
y > - (1/2)x - 2 → you can see the line in blue
As the sign is >, you keep only the part above the blue line
A, C, D, K
y ≤ - 2x + 10 → you can see the line in red
As the sign is ≤, you keep only the part below the red line, included the red line
2x - 4y < 8
- 4y < - 2x + 8
y > (- 2x + 8)/- 4
y > - (1/2)x - 2 → you can see the line in blue
As the sign is >, you keep only the part above the blue line
A, C, D, K