Answer:
y = -2x - 3
Step-by-step explanation:
Because the two lines are parallel, they have the same slope: m = -2.
Line b passes through the point (0, -3).
Using the slope intercept formula y = mx + b, along with m = -2, x = 0 and y = -3, we get:
-3 = -2(0) + b
Then b must be -3, and the equation of line b must be
y = -2x - 3
