1. Function Rules By: Christine Berg Edited By: V T Hamilton Edited By: V T Hamilton

2. Function The relationship between the input and output values

3. Function Each input value has EXACTLY one output value

4. Function Function Notation: f(n) = n + 5 OutputInput

5. Function Function Notation: f(n) = n + 5 Rule for Function

6. Function Example: You are driving a car 50 miles per hour (mph)

7. Function Example: D = r t d = 50t d=distance R= rate t=time

8. Function Set up a table using the previous function rule: d = 50 t Time(Input)12345 Distance(Output)

9. Function Find the Rule ~ Remember to define the variable. Look at next slide to see if you are correct Hours Worked Salary 1$6.50 2$13.00 3$19.50 4$26.00 5$32.50

10. Answer Define the variable s = salary h = hours Function Rule s = 6.50 h s = 6.50 h

11. Function Weeks Plant Height 13 25 37 49 511 Find the Rule ~ then look at next slide to see if you are correct

12. Answer Define the variable h = height w = number of weeks Function Rule h = 2 w + 1

13. Describe a function in your own words. Describe a function in your own words.