Answer:
y= -3x+3
Step-by-step explanation:
First, write your current equation: y=-3x+b. Next, plug in the coordinate to your equation. It should look like this: 6= -3(-1)+b. Multiply -3 by -1 to get 3. This is what you should have: 6=3+b. Subtract 3 from both sides to get your y-intercept, 3. Go back to your original equation and plug in 3 to b. This is your final equation: y= -3x+3. So, the first answer is correct. Hope this helped!