line chart or column chart I want to show the average response time based on number of tasks on a device on a chart. So the x-axis is "number of tasks" and y-axis is "average response time".

My question is which charts I can use? a line chart or a column chart?
Well, this should give you an idea:



Source is https://cdn2.hubspot.net/hub/53/file-863940581-pdf/Data_Visualization_101_How_to_Design_Charts_and_Graphs.pdf