please help dont answer if u dont know it

Answer:
D
Step-by-step explanation:
using the formula y = mx + b we can plug in the m and the b, getting
y = -5x - 9
Answer:
D
Step-by-step explanation:
The line equation of that type is y = mx + b.
If m = -5 and b = -9, then:
y = mx + b
y = (-5)x + (-9)
y = -5x - 9