1. Functions!! By: Laura Rochelle

2. Real World Problem: • Laura’s mom wants to let her invite some friends to tumbling lessons. She is allowed to invite up to five people. The cost for guests is $5.75. How much will it cost if up to five friends go to tumbling with Laura? Cartwheel!

3. The Equation: Y= 5.75(x) Function Notation: F(x)= 5.75(x)

4. TABLE

5. GRAPH Cost Number of People

6. Independent and Dependent Independent- Number of People Dependent- Cost

7. Is this a Function? YES!!

8. Why is it a Function?? • There are a lot of ways you can tell if a function….. • If your x values don’t repeat then it’s a function. • If it passes the vertical line test then it’s a function.

9. Continuous or Discrete? • My problem is discrete because you cannot have a half of a person.

10. Domain and Range! Domain: {1, 2, 3, 4, 5} Range: {5.75, 11.50, 17.25, 23.00, 28.75}

11. THE End!!