Put two or more lines on one graph. Label it, type your data, then graph it. Your work saves in this browser as you go.
Each line needs a name, a color, and its own set of points. Every line also gets its own marker shape, so the lines stay apart even in black and white.
If you measured every line at the same X values, choose the one shared X column. Rows line up, and you can leave a Y box empty when a line has no reading at that point.
If each line was measured at different X values, such as three runners timed at different distances, choose separate X values. Each line then gets its own small table.
What you measured across the bottom. Leave units blank if there are none.
What you measured up the side. Every line shares these axes.
Add at least two data points on one line, then choose Graph my data.