Answer:
y = -3x + 1
Step by step (I hope I don't confuse you):
1. First, look for the equation that has a slope of -3. In this case, it's all of them because they all have -3 before the x value.
2. Then look for what's given:
3. Now see what equation will have -5 when you subtract 6 from it's y intercept.
Hope you found this helpful.