I need the rate of change

Answer:
[tex]m=\frac{-1}{2}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Algebra I
Step-by-step explanation:
Step 1: Define
Find points from graph.
Point (-4, 0)
Point (0, -2)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m. Rate of change is the same as slope.