Introduction
Although simple two-step equations in one variable are linear, the typical form of a linear equation is actually a linear function where x is the independent variable and y is the dependent variable. In other words, y is a function of x. This week we will learn how to work with linear function of this form, including representing them on a graph.
Inequalities in Linear Equations
An inequality is a statement that one value is not equal to another value. The simplest form of an inequality is a true statement such as 8 > 5, which is read "eight is greater than five."
A linear inequality in one variable is a statement that a first-degree expression is greater than (>), less than (<), greater than or equal to (≥), or less than or equal to (≤) a value.