Explanation:
slope:
In math, slope is the ratio of the vertical and horizontal changes between two points on a surface or a line. The vertical change between two points is called the rise, and the horizontal change is called the run. The slope equals the rise divided by the run: . This simple equation is called the slope formula.
common ratio:
The constant factor between consecutive terms of a geometric sequence is called the common ratio.
Example: To find the common ratio , find the ratio between a term and the term preceding it. r=42=2. 2 is the common ratio.