# De?ne the slope of a line. ### Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071 ### Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

#### Solutions

Chapter 1, Problem 28RCC
To determine

## De?ne the slope of a line.

Expert Solution

the slope of a line is (m)=ΔyΔx=(y2y1)(x2x1)

### Explanation of Solution

Given information:

De?ne the slope of a line.

Calculation:

The slope of the is defined as ratio of rate of change of line increasing vertically and horizontally.

If the line pointing upward, the slope is positive, if pointing downward, slope will be negative.

It is defined using any two points on the line with the following formula.

Point on the line (x1,y1) and (x2,y2)

Slope (m)=ΔyΔx=(y2y1)(x2x1)

Hence, the slope of a line is (m)=ΔyΔx=(y2y1)(x2x1)

### Have a homework question?

Subscribe to bartleby learn! Ask subject matter experts 30 homework questions each month. Plus, you’ll have access to millions of step-by-step textbook answers!