You want to be able to see the grid lines behind the square. Use the gray gridlines to graph your parabola, or draw your own horizontal and vertical lines inside the square.

How to Change Grid Line Colors on a Chart With Microsoft Excel. Grid lines add horizontal and/or vertical lines to your graph that aid in measuring graph values. By default, these grid lines use ...

You can make a curved graph in Excel and Google Sheets using this tutorial. Learn how to convert sharp edges into smooth lines in a spreadsheet graph.

Drawing and interpreting graphs and charts is a skill used in many subjects. Learn how to do this in science with BBC Bitesize. For students between the ages of 11 and 14.

In Microsoft Excel, to draw attention to a specific marker in a line chart, drop in a thin line, think of it as a marker.

How to draw a line or shape on Google Maps desktop Google Maps has a couple of simple drawing tools you can use to customize a map that you've saved to Your places.