Variable Costs - Managerial Accounting

The video tutorial explains variable costs, highlighting that total costs vary with activity levels while per unit costs remain constant. An example using wedding catering illustrates how costs change with the number of attendees. The tutorial also describes how variable costs can be represented graphically, with total cost on the Y-axis and quantity on the X-axis, forming a diagonal line whose slope depends on the variable cost.

Describe how a graph representing variable costs would look.

What factors determine the slope of the line in a variable cost graph?