1. 1-1 Relations and Functions

2. Vocabulary
Domain
Range
Relation
Function
Function Notation

3. Ex 17: Consider the relation of wind chill factors at 20˚
State the relation as a set of
ordered pairs
State the Domain and Range
of the relation
Wind Speed (MPH)
Wind Chill Temp ˚F 5 19 10 3 15 -5 20
-10 25
-15 30
-18

4. Ex :
The domain of a relation is all consecutive integers between -2 and 2. The range y of the relation is 2 less than twice x where x is a member of the domain. Write the relation as a table of values and as an equation. Then graph the relation.

5. Ex :
State the domain and range of each relation below

6. Ex :
Function vs NOT a Function
Vertical Line Test

7. Ex : Function vs NOT a Function (3, -7) (8, 2) (3, -4) (1, 8) (2, 9)
TABLE X Y -2 7 9 1 3 4 8

8. Function Notation
y = 3x + 5
y = |2x – 9|

9. Ex : Evaluate each function for the given value
f(x) = x² - 3x + 4 and g(x) = |3x²|
f(4)
g(-2)
f(-1)
f(3x)

10. Ex Last One: