This is the first part of the Graph Sketching Series. Sketching is the process of drawing a rough idea of the overall shape of the graph. A graph sketch is a rough estimate of the actual graph of a function.
In this series, we will start with the graph of linear functions, then we will proceed with polynomial and rational functions later. We will also discuss how to sketch the graphs of trigonometric functions later.
In this post, we use different strategies to graph y = 2x – 1, a linear function. Since the graph of a linear function is a straight line, we only need two points to graph it. Here are four different ways to sketch the graph of linear functions. » Read more