Answer:
y = -3x - 3
Step-by-step explanation:
[tex]\boxed{y = mx + b}[/tex]
m is the slope and b is the y-intercept.
Slope = m = -3
The line passes through the point (4 , -15).
x = 4 ; y =-15 and m = -3
We can find the y-intercept by substituting in the above equation.
-15 = (-3)*4 + b
-15 = -12 + b
-15 +12 = b
[tex]\boxe{b = -3}[/tex]
Slope-intercept form:
y = -3x - 3