Learn how to plot coordinates and create straight line graphs to show the relationship between two variables. Also, plot graphs that contain a negative coefficient of x.

How to create a Line Chart in Excel To create a line chart in Excel, the procedure is as follows: Select the data across both the columns (from A3 to B12). Go to Insert > Line Chart.

To help draw a straight line graph from its equation, fill in a table of 𝑥 and 𝑦 values. Plot the pairs of values as coordinates and join to make a line.