The purpose of a commercial Is to appeal to the audiences Ethos, pathos, and logos, to get the consumer to buy their product. If a commercial appeals to a person's emotions, then the advertizer used pathos. If a commercial uses logic, then the advertiser used logos. If a commercial is trying to be sold based on who or where it comes from, then the advertiser used ethos. These three techniques are used to complete the main purpose of a commercial: to get the consumer to buy the product.