Final answer:
Corrugated metal roofing is the best roof covering for a slope of 2 inches per foot due to its lightweight, durability, and easy installation on slopes.
Step-by-step explanation:
For a slope of 2 inches per foot, the roof covering that would be best is corrugated metal roofing. Corrugated metal roofing is lightweight, durable, and can be easily installed on a slope. It is also resistant to fire, rot, and insects, making it a suitable choice for various weather conditions.