Let f be the function defined by f (x) = 7x + 8. Find 
and 
Definitions:
Unit Variable Cost
The cost associated with producing one additional unit of a product, which can include labor, raw materials, and other variable expenses.
Competitive Markets
A market structure characterized by the presence of numerous sellers and buyers, leading to prices that reflect supply and demand conditions.
Pricing Constraints
Limitations that affect the pricing strategy of a product or service, including cost of production, competition, market demand, and regulatory issues.
Price Affect
The psychological impact of price on a consumer's perception and purchasing behaviors, often influencing how a product is valued.
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