Sandra Lia Document3 Word Layout Relerences Maings Review View Help Telme what you want to do Chapter 21 Cost-Volume Profit Analysis 1. When output volume increases, do variable costs per unit increase, decrease, or stay the same with in the relevant range of activity? Explain 2. How does assuming that operating activity occurs within a relevant range affect cost-volume profit analysis? 3. How is a scatter diagram used to identify and measure the behavior of a company's costs? 4. In cost-volume profit analysis, what is the estimated profit at the break-even point? d States)