Inequality Calculator

Category: Algebra II

Enter compound inequalities as 4 < 2x + 5 <= 7, separate inequalities with commas. For absolute values, use abs().

Solution:

Step-by-Step Explanation:

Understanding the Inequality Calculator

The Inequality Calculator helps solve and simplify mathematical inequalities, such as absolute value inequalities, compound inequalities, and quadratic inequalities. Whether you're a student, teacher, or anyone exploring algebra, this tool simplifies the process and provides step-by-step explanations for better understanding.

What is an Inequality?

An inequality is a mathematical statement that compares two expressions and uses symbols like:

  • <: Less than
  • >: Greater than
  • ≤: Less than or equal to
  • ≥: Greater than or equal to

Inequalities can include absolute values, compound expressions, and quadratic equations. For example:

  • Compound Inequality: \( -3 \leq x + 2 < 5 \)
  • Absolute Value Inequality: \( |x - 1| > 4 \)
  • Quadratic Inequality: \( x^2 - 4 > 0 \)

How to Use the Inequality Calculator

Follow these steps to use the Inequality Calculator effectively:

  1. Select an Example: Use the dropdown menu to choose a predefined inequality example, such as \( 2 < |x - 1| \leq 4 \), and it will populate the input field automatically.
  2. Enter a Custom Inequality: If you prefer, enter your own inequality in the input field. Use the absolute value function as abs() for inequalities involving absolute values.
  3. Click "Calculate": The calculator will solve the inequality and provide a clear step-by-step explanation.
  4. View Results: The solution will display, along with all steps taken to solve the inequality, making it easy to follow.
  5. Clear Input: Use the "Clear" button to reset the fields and start fresh.

Features of the Inequality Calculator

  • Solves absolute value inequalities with clear steps.
  • Handles compound inequalities like \( 4 < 2x + 5 \leq 7 \).
  • Solves quadratic inequalities such as \( x^2 - 4 > 0 \).
  • Displays results in a clean, organized manner.
  • Provides step-by-step explanations to enhance understanding.

Why Use the Inequality Calculator?

Solving inequalities can be challenging, especially when they involve absolute values or complex expressions. This tool simplifies the process and provides a clear breakdown of each step, making it easier for users to:

  • Understand the solution process.
  • Check homework or practice problems.
  • Improve algebra skills with detailed explanations.

FAQs

What types of inequalities does this calculator solve?
It solves absolute value inequalities, compound inequalities, and quadratic inequalities.
How do I enter absolute values?
Use the abs() function. For example, \( |2x - 4| \) should be entered as abs(2x-4).
Can I enter custom inequalities?
Yes, you can manually enter your own inequality in the input field.
What does the step-by-step explanation show?
It shows how the inequality is solved, starting with the input expression and breaking it down into simplified steps.
What if I receive an "Invalid Input" error?
Ensure the inequality is entered correctly, and use abs() for absolute values. If you're unsure, try one of the predefined examples from the dropdown menu.

Example Inequalities

Here are some examples you can try with the calculator:

  • Absolute Value Inequality: \( 2 < |x - 1| \leq 4 \)
  • Compound Inequality: \( -3 \leq x + 2 < 5 \)
  • Quadratic Inequality: \( x^2 - 4 > 0 \)

Conclusion

The Inequality Calculator is a versatile tool for solving various types of inequalities quickly and accurately. Whether you're solving homework problems, learning algebra concepts, or verifying answers, this calculator provides clear solutions and step-by-step explanations to enhance your understanding.