What you’ll learn to do: Understand linear equations and their statistical relationship

During a heavy snowfall, it is predicted that snow will fall at a rate of 2 inches per hour. If there is already 6 inches of snow on the ground from a previous storm, how long will it be until there are 14 inches of snow on the ground? This question can be answered with a linear equation. Many relationships between two quantitative variables can be modeled by a linear relationship. This section reviews the basic concepts of lines.