Key Terms

Key Terms

horizontal line

A horizontal line is the graph of an equation that can be written in the form y=by=b. The line passes through the y-axis at (0,b).(0,b).

intercepts of a line

Each of the points at which a line crosses the x-axis and the y-axis is called an intercept of the line.

linear equation

An equation of the form Ax+By=C,Ax+By=C, where AandBAandB are not both zero, is called a linear equation in two variables.