Best practice recommendations are to create a chart placing independent variables on the horizontal, x-axis and dependent variables on the vertical, y-axis. For example, in a chart that displays ...

Graphs in Microsoft Excel typically chart time on the horizontal axis. Time is the independent variable in most relationships and dependent variables appear on the vertical axis. Some charts ...

Right now, the line chart doesn’t display the Emphasis series — the value $1,800,000 — as a vertical bar. It’s a round marker. The blue marker is there, but you can’t see it.