1. Warm – up #7 1. Convert 50 pounds per second to tons per hour. 2. If a car can travel 80 miles on 3.5 gallons of gas, how far can it travel on 10 gallons of gas?

2. Warm – up #7 Solutions = 90 tons/hr

3. Warm – up #7 Solutions 3.5x = 80(10) 3.5x = 800 228.6 miles

4. Homework Log Fri 12/4 Lesson 4 – 7 Learning Objective: To understand & apply direct, inverse, joint, & combined variations Hw: #409 Pg. 262 #21 – 28, 30, 32, 34

5. 12/4/15 Lesson 4 – 7 Variation Day 3 Advanced Math/Trig

6. Learning Objective To understand & apply direct variation To understand & apply inverse variation To understand & apply joint variation To understand & apply combined variation

7. Direct Variation

8. Inverse Variation

9. Joint Variation

10. Combined Variation

11. Variations

12. Variations

13. Variations

14. Variations

15. Variations

16. Variations

17. Ticket Out the Door Suppose the total cost C of producing x units of a certain product varies directly as the square of x. Find the cost of producing 80 units of the product if 15 units cost $450 to produce

18. Homework #409 Pg. 262 #21 – 28, 30, 32, 34