# Inequalities

GeoGebra supports inequalities in one or two variables. There are no limitations for inequalities to appear in Algebra View, but only specific inequalities can be drawn in Graphics View:

- polynomial inequalities in one variable, e.g.
*x^3 > x + 1*or*y^2>y*, - quadratic inequalities in two variables, e.g.
*x^2 + y^2 + x*y ≤ 4*, - inequalities linear in one variable, e.g.
*2x > sin(y)*or*y < sqrt(x)*.

For inequality sign you can use <, >, ≤, ≥. The Symbols <= and => also valid.
Conjunction and disjunction are also supported for inequalities, e.g. *(x>y)&&(x+y<3)* can be drawn.

In order to show the solution of an inequality as one or more intervals on the x-axis, select the *Show on x-axis* option in the *Style* tab of the Properties dialog of the inequality. (This does not work with every inequality.)

Inequalities are similar to functions. You can test whether *x* and *y* satisfy inequality *a* by typing `a(x,y)`

in the Input Bar, also when *A* is a point, syntax `a(A)`

is valid. A point can be restricted to the region given by inequality using PointIn Command. For inequality *b* in one variable, e.g. in *x*, `Point(b)`

yields a point restricted to the part of x-axis which satisfies inequality *b*.