The graph shows the number of handbags that mandy made in one day. what are the variables? describe how the variables are related at various points on the graph.

Part A:

Given the graph of a step function with number of handbags on the vertical axis and time on the horizontal axis.

The variables are: number of handbags and time.

Part B:

The number of handbags increases constantly at a regular interval. Until the time when he stopped making new handbags for the day.