Inequality Solver Calculator
Solve linear and quadratic inequalities and get interval notation solutions.
Enter Inequality
ax + b < c
Solution
Inequality
2x -5 < 3
Solution
x < 4
Interval Notation
(-∞, 4)
How to Solve Inequalities
Linear Inequalities
- • Isolate the variable on one side
- • When multiplying/dividing by negative, flip the sign
- • Express solution in interval notation
Quadratic Inequalities
- • Find the roots of the equation
- • Test intervals between and outside roots
- • Consider if parabola opens up or down