Forbes contributors publish independent expert analyses and insights. I help people communicate data clearly with graphs. I recently saw the infographic in Figure 1 and thought to myself, “Another ...

Plotting a graph takes time. Often mathematicians just want to know the key features. These are: shape, location and some key points (such as where the graph crosses the axes or turning points).

In this video we will learn about the plotting of graphs for a pair of linear equations in two variables. Two straight lines are obtained when we plot a pair of linear equations on the graph paper ...