Inequality Grapher
Shade the solution region of linear, quadratic and other inequalities in x and y, with solid or dashed boundaries.
Shade the solution region of linear, quadratic and other inequalities in x and y, with solid or dashed boundaries.
Use x and y with <, <=, > or >=. Strict inequalities get a dashed boundary. Add several to see where the regions overlap.
Drag to pan, scroll or pinch to zoom, hover to read coordinates.
Shades the set of points (x, y) that satisfy an inequality. Linear inequalities give half-planes, quadratic ones give the inside or outside of parabolas, circles and other conics, and any other expression in x and y works the same way.
Boundaries of strict inequalities (< and >) are dashed because the boundary itself is not part of the solution; ≤ and ≥ get solid boundaries. Enter several inequalities to see where their regions overlap — the feasible region of a system.
Example
y > x^2 − 4 and x + y ≤ 3
→ The region above the parabola and below the line