Greater than or equal to Less than or equal to Greater than Less than Warm Up Copy and fill in the chart. SituationInequality Practice more than an hour each day Write an essay between two and five pages long Do not spend more than $10 on candy and popcorn Collect at least 20 snicker bars while trick or treating P > 1 2 ≤ E ≤ 5 c + p ≤ 10 S ≥ 20

Homework Q & A

Linear Programming Objective: I can solve problems using linear programming.

Constraints: Inequalities Feasible region: All points that satisfy the constraints Objective Function: Quantity you want to maximize or minimize Vertices of feasible region will be maximum or minimum Linear Programming: Method for finding a minimum or maximum of some quantity given constraints

Maximum Minimum Objective Function: Find the maximum or minimum points Vertices: (0, 0) (2, 0) (4, 2) (0, 4) Test Vertices 2(0) + 0 = 0 2(2) + 0 = 4 2(4) + 2 = 10 2(0) + 4 = 4

Total 10x Minutes to work Number Cost Profit x 4x4x 6x6x 30y y 20y 22y 50 20(60) = ≤ ≤ ≥ Maximize T-Shirts 10 minutes to make Supplies cost $4 Profit $6 Sweatshirts 30 minutes to make Supplies cost $20 Profit $22 Sweatshirts (y) T-Shirts (x) You are printing T-shirts and sweatshirts to sell before homecoming. You have at most 20 hours to work. You can spend no more than $600 and you must sell at least 50 items

Maximum T-Shirts (x)Sweatshirts (y)Total Minutes to work10x30y≤ 1200 Cost4x4x20y≤ 600 Numberxy≥ 50 Profit6x6x22ymaximize 300 6(50)+22(0) = ( 50, 0) 700 6(25)+22(25) = (25, 25) 780 6(75)+22(15) = (75, 15) 7206(120)+22(0) =(120, 0) p.160:10-12, odd 75 T-shirts, 15 Sweatshirts Vertices:Test Vertices

Paying for College You have been given $40,000 to invest for a college scholarship. You must invest in both stocks and bonds. Let x represent the dollars invested in stocks. Let y represent the dollars invested in bonds. What inequality can you write to represent the amount of money invested in stocks and bonds? Stocks Bon ds

Paying for College Each investment requires a minimum purchase of $5,000 What are your new inequalities? Since stocks are more risky you want to at least twice as many bonds as stocks. What is the inequality? Stocks Feasible Region Bon ds Constraints Pg 339 #1-3, 5