1. 5-6 Graphing Linear Inequalities in the Coordinate Plane AGAIN!!
Goal:
Graph linear inequalities in the coordinate plane.
Use linear inequalities to solve real world problems.
Eligible Content:
A / A

2. Practice
Complete worksheet – “5-6 Graphing Linear Inequalities in the Coordinate Plane”

3. Word Problems Write an inequality for each problem.
Plug possible answers in to find solutions.

4. Word Problem #1
Ryan writes and edits short articles for a local newspaper. It takes him about an hour to write an article and about a half-hour to edit an article. Ryan works up to 8 hours a day.
Write an inequality to model this situation.
x y ≤ 8
Which ordered pairs show solutions to this inequality?
(5, 6) (1, 16) (2, 4)

5. Word Problem #2
A yearbook company promises to give the junior class a picnic if they spend at least $28,000 on yearbooks and class rings. Each yearbook costs $35 and each class ring costs $140. Write an inequality to model this situation. 35x + 140y ≥ 28,000 Which ordered pairs show how many yearbooks and class rings the junior class must buy to get their picnic? (400, 90) (395, 150) (600, 100)

6. Word Problem #3
You offer to go to the local deli and pick up sandwiches for lunch. You have $30 to spend. Chicken sandwiches cost $3.00 each and tuna sandwiches are $1.50 each. How many sandwiches can you purchase for $30?
A. 11 chicken sandwiches, 1 tuna sandwich
B. 12 chicken sandwiches, 3 tuna sandwiches
C. 3 chicken sandwiches, 15 tuna sandwiches
D. 5 chicken sandwiches, 9 tuna sandwiches

7. Homework
Worksheet – “5-6 Linear Inequalities Word Problems”