Acost function is a mathematical description of how a cost changes with changes in the level of an activity relating to that cost.
true / false.

True

Explanation:

Cost functions are descriptions of how a cost (i.e., material, labor, or overhead) changes with changes in the level of activity relating to that cost. For example, total variable costs will change in relation to increased activity, while fixed costs will remain the same. Cost functions may come in various forms. A cost function is a function of input prices and output quantity whose value is the cost of making that output given those input prices, often applied through the use of the cost curve by companies to minimize cost and maximize production efficiency .

"Market positioning" is when your company makes an effort to actively control and shape your brand image with your target market.

Market Positioning alludes to the capacity to impact consumer observation with respect to a brand or item in respect to contenders. The objective of market positioning is to set up the picture or personality of a brand or item so shoppers see it with a specific goal in mind.  

Market repositioning is the point at which an organization changes its current image or item status in the commercial center. Repositioning is typically done due to declining execution or significant shifts in the environment.