Question 1

What is a Linear Inequality?

Accepted Answer

An inequality compares two values or expressions, showing if one is less than, greater than, or simply not equal to another. A linear inequality means the variable (like 'x') has no exponents or roots (it is strictly to the first power).

Question 2

When do you flip the inequality sign?

Accepted Answer

The golden rule of inequalities: Whenever you multiply or divide both sides of an inequality by a negative number, you MUST flip the inequality sign to keep the statement mathematically true. (e.g., `<` becomes `>`, `≥` becomes `≤`). This calculator automatically handles this rule for you.

Question 3

What is Interval Notation?

Accepted Answer

Interval notation is a simplified way to write subsets of the real number line. It uses brackets `[ ]` to include a number (solid line/dot) and parentheses `( )` to exclude a number (open circle or infinity). For example, `x ≥ 5` is written as `[5, ∞)`.

Question 4

What does the 'AC' button do?

Accepted Answer

The 'AC' (All Clear) button instantly wipes your current equation, allowing you to quickly input a new math problem without needing to hold backspace.

Question 5

Does this calculator solve quadratic inequalities?

Accepted Answer

Currently, this specific tool is optimized strictly for Linear inequalities (equations without exponents like x²). If you enter complex parenthetical or quadratic structures, the calculator will return a format error.

Inequality Calculator

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