Inequality Calculator

Solve and graph simple linear inequalities.

a (x coefficient)

b (constant, LHS)

Sign

c (RHS)

a (x²)

b (x)

OP 0

Enter your values above to see the result.

Your Results

Solution

Number Line

Step-by-step Solution

Key Rules

Flip sign when multiplying or dividing both sides by a negative number.

Interval notation:
( ) = open (strict < >)
[ ] = closed (inclusive ≤ ≥)
∞ always uses ( )

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Pro Tips

Results update as you type — change any field to see the effect immediately.

Check that every value uses the same unit before comparing results.

Use the copy button to paste the inequality figures into a note or spreadsheet.

Nothing is sent to a server, so you can use this with private figures.