Answer:
Gradient, pitch, inclination, and grade.
Explanation:
Here are the four most common names for slope:
1. Gradient:
This is the most common name for slope in the United States. It is defined as the change in y divided by the change in x.
In other words, the gradient of a line is equal to the rise over the run.
2. Pitch:
This is another common name for slope. It is often used to describe the slope of a roof or a hill.
3. Inclination:
This name is less common than gradient or pitch, but it is still used sometimes. It is defined as the angle between a line and the horizontal plane.
4. Grade:
This name is often used in engineering and construction to describe the slope of a road or a railway. It is typically expressed as a percentage.
So, the four most common names for slope are gradient, pitch, inclination, and grade.