If a graph shows distance on the vertical axis and time on the horizontal axis, and the speed is steadily increasing, the line representing speed will be a straight line.
finite and infinite graph.
A line graph because time is a continuous variable
The best graph for minutes would probably be a line or bar graph to measure something over time. Your welcome!
Line Graph.
instantaneus
If a graph shows distance on the vertical axis and time on the horizontal axis, and the speed is steadily increasing, the line representing speed will be a straight line.
finite and infinite graph.
You can use graph paper
Draw a graph representing a hypothectical economy
pie graph
A line graph because time is a continuous variable
Line graphs are better for representing things that vary continuously, like temperature against time. Bar graphs are better for representing things that are counts not mapped against a continuous variable such as time, so in your case I would recommend a bar graph.
A pie graph is used when representing portions of a whole.
A line graph
a bar graph
I suggest a scatter-graph of line graph, with time as the independent axis.