They give a visual representation of the data, so they can be useful as a way of interpreting the data.
Graph
Yes - you can create graphs from the data in a spreadsheet.
Yes, highlight the information on the spreadsheet. Go to insert...create....click on Next, then choose a style of graph, and click done.
spreadsheet system
Pie chart and line graph
You can use MS Excel to create a graph from data in the spreadsheet or from an external source. You also can display a graph with MS Powerpoint. MS Word can display a graph, but usually does not create it.
spreadsheet
The scales and title applied to the graph's axes.
To create a line graph in OpenOffice, first, open OpenOffice Calc and enter your data into a spreadsheet, organizing it in columns or rows. Highlight the data you want to graph, then go to the "Insert" menu and select "Chart." In the Chart Wizard, choose "Line" as the chart type and follow the prompts to customize your graph's appearance. Finally, click "Finish" to insert the line graph into your spreadsheet.
no
You plot your data as points on a Cartesian coordinate system (X/Y graph). You chose "Scatter" from the chart type in your spreadsheet program.
Import your data into an Excel spreadsheet. Select the data appropriately and choose the graph you would like to present your data in. You can use chart wizard to do this.