2. BUSINESS CARDS 10th grade math Patterns & Relationships Hazelwood School District Kathy Epperly TeacherPage

3. STORE A $30 for the first 200 cards $0.05 for each additional card $0.10 for each card STORE B You need to buy business cards. Before you do, investigate the cost.

4. For what number of cards is the cost the same at both stores? Provide the work that shows how you arrived at the answer! Circle your answer. STORE A $30 - first 200 cards $0.05 for each additional card STORE B $0.10 for each card

5. Provide the work that shows how you arrived at the answer! Circle your answer. STORE A $30 - first 200 cards $0.05 for each additional card STORE B $0.10 for each card How many cards would you have to buy so that STORE A has the best price?

6. Is there ever a situation where ordering less cards than those required for the breakeven point might be justified? Write a paragraph of at least 5 lines supporting your answer. END

7. TEACHER PAGE This activity addresses NCTM Standard 5 and Missouri Standard 1.6, 1.8, 2.2, 3.3. Time: Approximately 20 minutes Materials: Students could use a graphing calculator and graph paper. ANSWERS: #1 $40 for 400 cards #2 A has the best price for greater than 400 cards Students could discuss problem solving strategies with a partner or in a small group.