1. Gofo and have out Graphing Stories
Gofo and have out Graphing Stories
Sheet

2. Agenda *Dependent & Independent Variable *Domain/Range Foldable
*Domain & Range Scoot
F-IF.A.2 Use function notation, evaluate functions for inputs in their domains, and interpret statements that use function notation in terms of a context. Also F-IF.A.1, A-CED.A.2

3. Which ARE NOT functions? A. {(-2, 4), (-4, 4), (-4, 3), (-3, 4)} B. C.D. E.
{(-3,1), (0,-3),(3,1), (3,-1)} F. X Y -1 1 X Y -7 5
-7.01 -2 -4

4. Which inequality would represent the following situation:
Fletcher is buying 10 gift bags for his birthday party. He will choose items to put in the bags and then pay an additional charge of $0.75 for the actual bag. Fletcher cannot spend more than $50. Write and solve an inequality to find the most Fletcher can spend on the items for each bag.  Let x represent the amount Fletcher spends on each bag.
A.  x ≥ 50
B.  (10)(0.75)x ≥  50
C.  x+10(0.75) ≤  50
D.  10x+0.75(10)≤ 50

5. Which inequality would represent the following situation:
Fletcher is buying 10 gift bags for his birthday party. He will choose items to put in the bags and then pay an additional charge of $0.75 for the actual bag. Fletcher cannot spend more than $50. Write and solve an inequality to find the most Fletcher can spend on the items for each bag.  Let x represent the amount Fletcher spends on each bag.
A.  x ≥ 50
B.  (10)(0.75)x ≥  50
C.  x+10(0.75) ≤  50
D.  10x+0.75(10)≤ 50

6. So far you know that FUNCTIONS...
*can be represented by ordered pairs, tables, graphs, or mappings.
*must have a unique output for each input.  (for graphs this means passing the Vertical Line Test)
*can be continuous or discrete

7. Next...Dependent vs. Indepepndent Have out your FRAYER MODEL!
AND
Domain vs. Range
Have out your FRAYER MODEL!

8. More vocab-yet another way to say “x” or “y”

9. Ex 1

10. Ex 2

11. Ex 3

12. Ex 4

13. Let’s go back to Ex 2 and write the function

14. Let’s go back to Ex 2 and write the function

15. Ex 3

16. Ex 4

18. Today’s in-depth look at functions: DOMAIN vs. RANGE
All possible values
for y
aka output
aka dependent variable
All possible values
for x
aka input
aka independent variable

19. Domain and Range of DISCRETE data
𝐷: 1, 3, 5
𝑅: {6}
Set Notation
𝐷: −1, 2, 5
𝑅: {−4, 8, 20}

20. and not repeated. Usually in set notation, items are ordered,𝐷:
𝑅:{ }

21. and not repeated. Usually in set notation, items are ordered,𝐷:
𝑅:{ }

22. Domain and Range of continuous data

23. Domain and Range of continuous data

24. Table can’t list all values
Domain and Range of continuous data 𝐷: 𝑅:
Table can’t list
all values 𝐷: 𝑅:

25. Domain and Range of continuous data
𝐷: {−∞<𝑥< ∞}
𝑅: {0<𝑦< ∞}
Set Notation 𝐷: 𝑅:
{0≤𝑥< ∞}
{−∞<𝑦< ∞}

26. Domain and Range
Foldable

27. DOMAIN
Foldable -∞ ∞

28. R A N G E
Foldable ∞ -∞

29. DOMAIN
Foldable -∞ ∞

30. Foldable R A N G E ∞ -∞

31. IXL 100 grid