How do you find speed from a graph?

1. How do you find speed from a graph? Distance (km) Time (hr.)

2. In this lesson you will learn to find a unit rate by using a graph.

3. $6 for 2 pounds Cost ($) How many dollars for 1 pound? Cost ($) Weight (lb.) 2 6 Unit rate: $3 per pound 4 12 18 6 Weight (lb.)

4. Unit Rate = # of dependent variable per 1 of the independent variable Cost ($) dollars per 1 pound, not pounds per 1 dollar Weight (lb.)

5. Cost ($) Weight (lb.) Cost ($) 12 3 1 2 6 3 9 3 4 12 15 5 Weight (lb.) 18 6

6. What’s the unit rate? Distance (km) Answer: 2 km per hr. Time (hr.)

7. Distance (mi.) 32 What’s the unit rate? 30 Answer: 3 mi. per hr. 28 11 10 9 Time (hr.)

8. Cost ($) What’s the unit rate? (one tick mark equals one unit) Answer: $4 per lb. Weight (lb.)

9. In this lesson you have learned to find a unit rate by using at a graph.

10. What’s the unit rate? Distance (mi.) Time (hr.)

11. 18 What’s the unit rate? Distance (ft.) 16 14 12 8 7 9 Time (min.)

12. What’s the unit rate? (one tick mark equals one unit) Cost ($) Weight (oz.)

13. Cost ($) • Find the unit rate from a graph when the rate is a non-integer. Weight (oz.)

14. Cost ($) • Find the unit rate from a graph when the rate is a non-integer (harder). (one tick mark equals one unit) Weight (oz.)

15. Cost ($) What’s the unit rate? Weight (lb.)

16. 36 Distance (ft.) What’s the unit rate? 32 28 24 12 11 10 8 9 Time (min.)