Slope Calculator

Find the slope of a line step by step

The calculator will find the slope of the line passing through the two given points or the slope of the given line, with steps shown.

Related calculators: Line Calculator, Parallel and Perpendicular Line Calculator

Choose type:

Enter two points or

Point 1: (, )

Point 2: (, )

Enter a line:
y=-x-5 or 2x-7y=3.

If the calculator did not compute something or you have identified an error, or you have a suggestion/feedback, please write it in the comments below.

Our Slope Calculator is your primary resource for effortlessly grasping and determining slopes. Beyond just calculating the slope between two given points, it also offers a step-by-step solution.

How to Use the Slope Calculator?

  • Input

    Locate the input fields for your two points. Enter the $$$x$$$ and $$$y$$$ coordinates of the first point. Similarly, input the $$$x$$$ and $$$y$$$ coordinates of the second point. Alternatively, enter the equation of the given line.

  • Calculation

    Once you've entered the data, click the "Calculate" button.

  • Result

    The calculated slope will be displayed in the results section.

How to Find the Slope of a Line?

The slope of a line, often denoted by the letter $$$m$$$, measures how steep the line is. It describes how much the line rises (or falls) for a horizontal movement. In more technical terms, the slope represents the rate of change of the y-values compared to the x-values.

How Do You Determine the Slope of a Line?

To determine the slope of a line, follow these steps:

  • Identify Two Points on the Line: Choose two distinct points on the line, preferably ones that are easy to work with. Label them as $$$\left(x_1,y_1\right)$$$ and $$$\left(x_2,y_2\right)$$$.
  • Use the Slope Formula: The slope is calculated using the following formula:


    This formula calculates the vertical change rate (rise) to the horizontal change (run) rate between the two points.

  • Special Cases:
    1. For a horizontal line, which doesn't rise or fall, the slope is $$$0$$$.
    2. The slope is undefined for a vertical line, and it doesn't run horizontally because dividing by zero (the horizontal change) is impossible.

How to Interpret the Slope

Even though the slope of a line doesn't reveal its placement on the graph, it does describe the line's tilt or angle.

  • When the slope is positive, the line is inclined upwards when observed on the graph from left to right.
  • Conversely, a negative slope means the line falls from left to right.
  • A slope of zero results in a horizontal line, showing neither an upward nor downward inclination. Such a line is often referred to as having no slope.
  • For vertical lines, the slope cannot be defined. This is due to the constant x-value for any two points on the line, resulting in a zero difference. Consequently, determining the slope would mean dividing by zero, which means that the slope is either infinite or undefined.

How to Find the x- and y-Intercepts of a Line

A line's x- and y-intercepts are the points where the line crosses the x-axis and y-axis, respectively. Knowing how to find these intercepts can provide valuable insights into the properties of the line. Here's a step-by-step guide for determining them:

Finding the x-intercept:

  • Set $$$y=0$$$ in the equation of the line.
  • Solve for $$$x$$$. The solution will give the x-coordinate of the x-intercept.
  • The x-intercept will be of the form $$$(x,0)$$$.

Finding the y-intercept:

  • Set $$$x=0$$$ in the equation of the line.
  • Solve for $$$y$$$. The solution will give the y-coordinate of the y-intercept.
  • The y-intercept will be of the form $$$(0, y)$$$.

Understanding how to find the x and y intercepts is foundational in algebra. It aids in graphing linear equations and understanding the behavior of lines within the coordinate plane. It also helps to find the slope of a line because if $$$(x_0,0)$$$ and $$$(0,y_0)$$$ are the two intercepts of the line, its slope is $$$m=-\frac{y_0}{x_0}$$$.

Why Choose Our Slope Calculator?

  • Accuracy

    Our calculator is designed with precision in mind. It ensures you get correct results every time, eliminating the risk of manual calculation errors.

  • User-Friendly Interface

    With its intuitive design, users of all levels can effortlessly input their data and get results. No more complicated menus or instructions.

  • Speed

    In seconds, you can input your coordinates and receive the calculated slope. This efficiency saves time, especially for those working on multiple problems or real-world projects.

  • Versatility

    Our calculator supports different inputs: a line or two points.


How is finding the slope used in real life?

Finding the slope is not just a mathematical exercise; it has numerous real-life applications. The slope can help us understand the economic relationship between supply and demand. Engineers use slopes to determine the gradient of roads or railways. In environmental science, it can indicate the steepness of a terrain which impacts drainage, erosion, and construction. Financial analysts use it to see the trend of stock prices over time. In essence, in any situation where there's a need to understand the rate of change or relationship between two variables, the concept of a slope comes into play.

How do you find the slope of a curve?

Curves don't have a consistent slope like straight lines do. The slope at a particular point on a curve is the slope of its tangent at that point. Using calculus, specifically differentiation, the slope of the function $$$f(x)$$$ at some point $$$x_0$$$ is given by its derivative $$$f'(x_0)$$$. By evaluating the derivative, you can find the curve's slope.

What is the primary function of the Slope Calculator?

The Slope Calculator is designed to compute the slope of the given line or the line through the two given points.