Shown below are terms or phrases preceded by letters (a) through (i) followed by a list of definitions. Match the terms of phrases 1 through 9 with the correct definitions by placing the letter of the term or phrase in the answer space provided at the beginning of each definition. (a) Mixed cost (b) Fixed cost (c) Contribution margin per unit (d) Variable cost (e) Step-wise cost (7) Relevant range of operations (g) Estimated line of cost behavior (h) Least-squares regression (1) Cost-volume-profit analysis (7) The amount by which a product's unit selling price exceeds its variable costs per unit. (2) A cost thot changes in total in proportion to changes in volume of activity. (3) A cost that includes both fixed and variable cost components. (4) A line drawn on a scatter diagram to reflect the relation between cost and unit volume. (5) A statistical method for identifying cost behavior. (6) The normal operating range for a business. (7) A cost that remains constant over limited ranges of volumes of activity but shifts to another level when volume changes significantly. (B) A business planning tool that helps managers predict how changes in costs and sales levels affect profit. (9) A cost that does not change in total when the volume of activity changes (within a relevant range)