The solution of a linear inequality in two variables like Ax +
By > C is an ordered pair (x, y) that produces a true statement
when the values of x and y are substituted into the inequality.
Example:
Is (1, 2) a solution to the inequality
The graph of an inequality in two variables is the set of points
that represents all solutions to the inequality. A linear
inequality divides the coordinate plane into two halves by a
boundary line where one half represents the solutions of the
inequality. The boundary line is dashed for > and < and solid
for ≤ and ≥. The half-plane that is a solution to the inequality is
usually shaded.
Example:
Graph the inequality
Videolesson: Graph the linear inequality
