Answer:
A. -3 < x < 1
General Formulas and Concepts:
- Reading a Cartesian Plane
- Analyzing a Graph
Step-by-step explanation:
"When is the function decreasing" is saying when the graph is going down.
Calculus-wise, we are finding when the slope of the tangent line is negative.
From the graph, we see it decreasing from -3 to 1. Everywhere else is increasing.
Therefore, our interval decreasing is from (-3, 1).
