Qat=18-4Pt+1 st=-3+3Pt

8. A new car tends to depreciate in value more quickly during the first couple of years and then at a more gradual rate afterwards. Suppose that a 2017 Toyota Prius has a value of $18,000 on January 1, 2019. If it then begins to depreciate in value $1,500 per year, find a) The linear equation for the value of the car years after 2019. V b) The slope of the equation is of the car decreases c) Find the value of the car in 2022. and means for each year past 2019, the value and in 2027

Yaster Breakfast Supplies is planning to manufacture and market a new toaster. After conducting extensive market surveys, the research department provides the following estimates: • a weekly demand of 318 at a price of $13 per toaster • a weekly demand of 201 at a price of $16 per toaster The financial department estimates that weekly fixed costs will be $1,399 and variable costs (cost per unit) will be $3. Assume: • the relationship between price and demand is linear • the cost function in linear Use your models to predict the marginal profit when Yaster is producing and selling 271 toasters per week. Round to the nearest cent. $ per toaster

The Organization for Economic Cooperation and Development (OECD) consists of 20 industrialized countries. For these nations, the prediction equation relating y = child poverty rate (in percentage points) to x = social expenditure as a percentage of gross domestic product (GDP) is  = 22-1.3x. In 2000, the actual child poverty rate ranged from 2.8% (in Finland) to 21.9% (in the U.S.). Social expenditure as a percentage of GDP ranged from 2% (in the United States) to 16% (in Denmark). What is the value of the y-intercept (a) estimated in the linear prediction equation provided above (= 22-1.3x)?  Also, interpret the y-intercept.   y-intercept:     Interpretation of y-intercept: