Using the equation y=mx + b with m=-2 and the point (-8,-2) to find the y-intercept (b), we have:
-2=-2(-8) + b (Replacing the values)
-2= 16 + b (Multiplying)
-18 = b (Subtracting 16 from both sides of the equation)
The answers are:
Equation of the line: y = -2x -18
m= -2
b= -18