Graphing Calculator

A free online graphing calculator to visualize mathematical functions and equations. Plot graphs, analyze relationships, and explore mathematical concepts visually.

Graphing functionality coming soon

What is a Graphing Calculator?

A graphing calculator is a specialised calculator that can plot graphs of functions, visualize mathematical relationships, and analyze equations graphically. Unlike standard calculators, graphing calculators display functions as visual graphs on a coordinate plane, making it easier to understand mathematical concepts and relationships.

Graphing calculators are essential tools for students studying algebra, calculus, trigonometry, and other advanced mathematics. They help visualize how functions behave, identify key features like intercepts and asymptotes, and solve equations graphically.

How to Use a Graphing Calculator

  1. Enter a function: Type your mathematical function (e.g., y = x² + 2x + 1) into the input field.
  2. Set the viewing window: Adjust the x and y axis ranges to focus on the area of interest.
  3. Plot the graph: Click the graph button to visualize your function on the coordinate plane.
  4. Analyze features: Identify intercepts, turning points, asymptotes, and other key features of the graph.
  5. Compare functions: Graph multiple functions simultaneously to compare their behavior.

Common Uses

Algebra

Graph linear, quadratic, polynomial, and rational functions to understand their behavior and find solutions.

Calculus

Visualize derivatives and integrals, analyze function behavior, and understand limits graphically.

Trigonometry

Graph trigonometric functions like sine, cosine, and tangent to understand their periodic nature.

Statistics

Plot data points, create scatter plots, and visualize statistical relationships.

Frequently Asked Questions

What types of functions can I graph?

You can graph linear functions, quadratic functions, polynomial functions, trigonometric functions, exponential functions, logarithmic functions, and more. Most graphing calculators support a wide variety of mathematical functions.

Can I graph multiple functions at once?

Yes, most graphing calculators allow you to plot multiple functions simultaneously, each in a different color, so you can compare their behavior and find intersection points.

How do I find the intersection of two graphs?

Graph both functions on the same coordinate plane. The intersection points are where the graphs cross. You can use the calculator's trace or intersection feature to find the exact coordinates.

Is this calculator suitable for exams?

Always check with your instructor or exam board about calculator policies. Some exams allow online graphing calculators, while others may have specific restrictions or require physical calculators.

Related Calculators

Scientific Calculator →Matrix Calculator →Algebra Solver →

Cite This Calculator

Reference this calculator on your website or in your work using the citation below:

HTML Citation Code:

<p>Calculator: <a href="https://onlinecalculator.co.uk/math/graphing-calculator" target="_blank">Graphing Calculator</a> - OnlineCalculator.co.uk</p>

APA Style Citation:

OnlineCalculator.co.uk. (2025). Graphing Calculator. Retrieved from https://onlinecalculator.co.uk/math/graphing-calculator

Note: This calculator is free to use and reference. No permission required for educational or commercial citation.