The tells how fast a line rises or falls between any two points on that line. algebraically it is expressed as (y2 - y1)/ (x2 - x1) for the line passing through (x1, y1) and (x2, y2). example: commonly referred to as rise over run, change in y over change in x, or the rate of change.

Slope

Step-by-step explanation:

Since, the change in the y coordinate divided by the corresponding change in the x coordinate, between two distinct points on the line is called slope of the line,

That is, slope shows the rate of change between two points in the graph,

If and are two points from which a line passes,

Then the rate of change of the line or slope of the line is,

Also, change is y coordinates is called rise while the change in x -coordinates is called run.

Hence, the missing word in the given statement is Slope.

answer: 20

step-by-step explanation: