1. Write an Equation and Make a Graph Math 8

2. When should you use this strategy? When a real-world situation involves two related variable.

3. Steps Step 1: Read the story problem twice. Step 2: Write an equation. Step 3: Graph the equation. Step 4: Estimate the answer from the line. Step 5: Check your answer.

4. Party Planning Suppose your family is planning a special party at a restaurant for your birthday. A buffet dinner costs $15 per person. For dessert, your parents plan to buy a birthday cake that costs $30. Find the number of people you can invite to the party for $275. Equation:________________________

5. Party Planning t = 15p + 30

6. Socks – Example 2 You buy a belt for $10 and some socks. Each pair of socks costs $3. The shipping cost is $2. Write an equation and make a graph that represents your total costs. a.What is the total cost if you buy 6 pairs of socks. b.What is the total cost if you buy 11 pairs?

7. Socks Equation: a.6 b.11

8. Books – Example 3 You order books through a catalog. Each book costs $12 and the shipping and handling cost is $5. Write an equation and make a graph that represents your total cost.

9. Books Equation:

11. Homework Practice II Math Worksheet 1 – 9. Graph even numbers (solve others using whichever strategy you choose).