Function Vocab
Evaluating Function Rules
Domain
Range
Is it a Function?
Random
100
If the y-values (RANGE) of a function REPEAT then IT IS NOT A FUNCTION
FALSE
100
Evaluate f(x) = -3x-2
f(3) =
f(3) = -11
100
Express the following in Interval Notation
{x|-8 ≤ x < 8}
[-8,8)
100
Identify the domain and range . 
{y| 0
100
Is it a function? {(2, 3), (4, 5), ( -2, 6)}
YES because x does not repeat
100
Guess the logo:
Naruto
Fairy Tail
Attack On Titan
200
What is Domain?
The set of X-VALUES a relation or a function
200
Evaluate f(x) = -2x + 1
f(12) =
f(12) = -23
200
Express the following in Interval Notation
{x|-9 < x ≤ -4}
(-9,-4]
200
Identify the domain. 
-4 < x ≤
infty
200
What is the DOMIAN and RANGE of this:
(1, 2) (-1, -3) (0, 4) (5, -6)
Domain: {(-1, 0, 3, 5)}
Range: {(-6, -3, 2, 4)}
200
What sport do people play when they play in the NFL?
Football
300
What is the range?
The set of Y-VALUES in a relation or a function
300
Evaluate f(x)= 1/2x + 5; f(4) =
g(4) = 7
300
Write the following in interval notation
{x|x < 3 or x ≥ 5}
(-∞, 3) or [5, ∞)
300
Identify the domain.
(-3,1]
300
Is it a function?
| x | y |
| 2 | 4 |
| 1 | 5 |
| 2 | 6 |
NO because x repeats
300
What is the biggest dog in the world?
Great Dane
400
What is a function?
A relation that assigns exactly one input to each output
400
Evaluate f(x)= -x2-5x + 7; f(2)
h(2) = 7
400
Look at the Graph. Write the inequality in interval notation.
[-4, -1)
400
What is the range of the function?
[-8,2]
400
Is it a function?
YES because it passes the Vertical Line Test
400
who is this ?
ichigo
500
What is the Vertical Line Test?
The test to tell if a graph is a function
500
You are finding what x is equal to.
f(x)= -4x + 8; f(x) = 0
f(2) = 0
500
Write the following as interval notation:
{ all the real number expect -6 }
(-infinity, -6) U (-6, + infinity )
500
What is the DOMAIN of this graph?
(-3, +infinity)
500
Is it a function? 
NO, because it does not pass the Vertical Line Test
500
Where is Ms.Xu from?
China
600
What is the Zero of function?
x-intercepts!
600
You are solving for x. f(x) = 5x - 6
f(x) = -1
f(1) = -1
600
Look at the graph. Write the inequality in interval notation.
(-∞,-2)⋃(5,∞)
600
Identify the domain and range.
-infty <x<infty
-infty < y < infty
600
Is this relation a function? {(-8, 4), (-1, 4), (3, -8), (0, 0)}
YES!
600
x=150