Answer:
y = -3x+8
Step-by-step explanation:
We can use the slope intercept form of an equation
y = mx+b where m is the slope and b is the y intercept
y = -3x+b
Substitute the point into the equation
-1 = -3(3)+b
-1 = -9+b
Add 9 to each side
-1+9 = -9+9+b
8 =b
y = -3x+8
