Please bantuin.tolong di jawab

D. 1 dan 4

1. y = 3x+4
m = 3

2. 3x+2y = 12
2y = -3x+12
y = -3/2x+6
m = -3/2

3. y = -3x-12
m = -3

4. -9x+3y = 12
3y = 9x+12
y = 3x+12
m = 3

yg m nya sama 1 dan 4