If a company has discovered that at a price of $50, their sales volume will be 800 units. If they changed their price by $2, their sales will either increase of decrease by 50 units. Which among the following is a correct model of their price vs sales volume relationship? SALES VOLUME=400-50 * (PRICE-50) SALES VOLUME=800-50 * (PRICE-50) SALES VOLUME=800-25 * (PRICE-50) SALES VOLUME=800-25 * (PRICE-25)

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