1. Automobile Ownership

2. Gas Prices How have gas prices changed over the last 60 years? YearPrice per Gallon 19500.27 19550.30 19600.31 19650.31 19700.35 19750.53 19801.13 19851.19 19901.13 19951.14 20001.66 2/28/20113.35

3. Buying a Car If you were looking to buy or sell a car, where would you look?

4. Buying a Car ac- Air conditioning auto- Automatic Transmission cruise- Cruise control CD- CD player cyl- Number of cylinders dr- Number of doors GPS- Navigation system lthr- Leather interior

5. Buying a Car p/ant- Power antenna p/locks- Power locks p/mirrors- Power mirrors p/seats- Power seats ps- Power steering pw- Power windows

6. Sales Tax When you purchase a car, you may need to pay sales tax. Unlike regular purchases, sales tax is not paid to the seller of the vehicle. If you purchase a car in a state that does not have a sales tax, you must still pay sales tax to register the car in MA

7. Sales Tax Kerry purchased a used car for $7,400 and had to pay 8 ½ % sales tax. How much did she pay? To find the sales tax, multiply the selling price by the sales tax rate. Sales tax = ($4,700)(0.085) = $629.00 Kerry had to pay $629 more for sales tax.

8. Sales Tax Find the sales tax you would have to pay in MA for a $50,000 car. MA Sales Tax: 6.25% Sales tax = ($50,000)(0.0625) = $3,125 The car would cost you $53,125

9. Sales Tax The sales tax rate in Mary Ann’s state is 4%. If she purchases a car for x dollars, express the total cost of the car with sales tax. Sales tax = ($x)(0.04) = $0.04 x The car would cost you: x + 0.04x or: 1.04 x

10. Placing an Ad Placing an add in the newspaper or online has certain costs associated with it. Most places charge a set price for a certain number of lines For any additional lines, there is an extra charge In algebra, this is called a piecewise function

11. Placing an Ad John plans to sell his car and places a 5-line ad. The newspaper charges $31 for the first two lines and $6 per extra line to run the ad for one what. What will the cost to John be? First 2 Lines:$31 Remaining 3 Lines:($6) (3)= $18 Cost to John:$49

12. Placing an Ad Ramon plans to sell his car and places an ad with x lines. The newspaper charges y dollars for the first g lines and p dollars per extra line. If x > g, how much does it cost to run the ad? First g Lines:$y Remaining Lines:(x - g) Cost to Ramon:y + p (x – g) (p)

13. Automobile Ownership Page 222, #’s 2-8

14. Automobile Ownership

15. Piecewise Functions You are going to put an ad in a newspaper that charges $42.50 for up to five lines and $7 for each additional line. If your ad is x lines, write an algebraic expression representing this.

16. Piecewise Functions The Smithtown News charges $38 for a classified ad that is 4 or fewer lines long. Each line above four lines costs an additional $6.25. Express that cost of an ad that is x lines long algebraically.

17. Piecewise Functions Roxanne set up the following piecewise function which represents the cost of an auto classified from her hometown newspaper. c(x) = What does this piecewise function mean? 41.55when x ≤ 6 41.55 + 5.50 (x – 6) when x > 6

18. Piecewise Functions Page 222, 9 – 18 (don’t do any graphing)