1. 2.4 Creating and Solving Inequalities
Algebra 1
Mr. Alonso

2. Standards
MAFS.912.A-CED.1.3 Represent constraints by equations or inequalities, and by systems of equations and/or inequalities, and interpret solutions as viable or non-viable options in a modeling context. For example, represent inequalities describing nutritional and cost constraints on combinations of different foods.
MAFS.912.A-CED.1.1 Create equations and inequalities in one variable and use them to solve problems. Include equations arising from linear and quadratic functions, and simple rational, absolute, and exponential functions.
MAFS.912.A-REI.2.3 Solve linear equations and inequalities in one variable, including equations with coefficients represented by letters.

3. Opening Routine
Ernesto and his family have just finished dinner at a restaurant in a region where the meal tax is 6% of the price of the meal. Ernesto leaves an 18% tip. With tax and tip, the total cost is $72.39.
a) Write the equation that models this situation.
b)Use your equation to find the price of the meal without tax or tip.

4. Objective
I will write and solve an inequality that represents a real-world situation

5. Essential Question
How do you write and solve an inequality that represents a real-world situation?

6. Vocabulary

14. Closure:

15. Homework
5, 6, 12, 17, 19