Quickly visualize and solve quadratic inequalities such as ax² + bx + c < 0. Our free calculator helps you find the vertex, roots, axis of symmetry, and determine the shaded solution region for any quadratic inequality.
Formula:
A quadratic inequality takes the form:
ax² + bx + c < 0ax² + bx + c > 0ax² + bx + c ≤ 0ax² + bx + c ≥ 0
Where:
- a, b, and c are real numbers,
- and a ≠ 0.