Answer: C (1/3)
Step-by-step explanation: First you want to isolate Y by subtracting 3x on both sides. You would then have -9y = 4 - 3x. Then you want to have the Y by itself by dividing by -9 on both sides. You would then have Y = -4/9 + 3/9x. 3/9x would be the slope but when simplified, it turns into 1/3 which is the answer.