Function Vocab
Evaluating Function Rules
Combining Like Terms/Distributive Property
Variables on Two Sides
Is it a Function?
100
True or False-A relation is a set of ordered pairs
TRUE
100
Evaluate f(x)=-3x if x=2
-6
100
3b - 5 - 2b = 5
What is b= 10?
100
5t - 4= t - 8
What is t=-1?
100
Is it a function? {(2, 3), (4, 5), ( -2, 6)}
YES because x does not repeat
200
The set of first coordinates of a relation or a function
Domain
200
Evaluate f(x)=2x+1 if x=-2
-3
200
3 (x -4) = 15
What is x=9?
200
7 + 3h = -1 -5h
What is h= -1?
200
Does the graph of the points (1,3) and (1,5) represent a function?
No, a function does not have one element in the domain go to different values in the range
300
The set of second coordinates in a relation or a function
Range
300
Evaluate f(x)=-3 - x if x=6
-9
300
5n + 4 - 8n = -5
What is n = 3?
300
6d + 1 = 15 - d
What is d= 2?
300
Is it a function?
| x | y |
| 2 | 4 |
| 1 | 5 |
| 2 | 6 |
No because x repeats
400
A relation that assigns exactly one value in the range to each value in the domain?
Function
400
Evaluate f(x)=25 + 4x if x=5
45
400
3(s-10) = 36
What is s= 22?
400
5(t+2) = 25 + 2t
What is t=5?
400
Is it a function?
{(1,4), (2,4), (3,4), (4,4), (5,4)}
Yes!
500
Which of the following are not function types?
Many-One
One-One
One-Many
One-Many
500
Evaluate f(x)=-(4x+2) if x=7
-30
500
4(y-2) + y= -13
What is y= -1?
500
5(k-4) = 4- 3k
What is k = 3?
500
Is it a function? 
No, you have same x-values go to different y-values