Function Vocab
Evaluating Function Rules
Domain & Range
Graphing
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
Graph with points of (9, 7), (3, 6), (2, 8). What are the domains?
9, 3, 2
100
The point (1,2) is in this quadrant
1st quadrant
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
What's the domain and range?
(3, 3)
200
How do you graph the point (-3,4)?
Go left 3 units on the x-axis then go up 4 units on the y-axis
200
Using the vertical line test does the graph of the points (1,3) and (1,5) represent a function?
False, the points fail the vertical line test
300
The set of second coordinates in a relation or a function
Range
300
Evaluate f(x)=-3 - x if x=6
-9
300
TRUE or FALSE: The domain is the y-axis and the range is the x-axis?
FALSE, because the x-axis is the domain and the y-axis is the range.
300
The signs of the points in quadrant 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
What is the domain?
-3 < x < or = 1
400
The quadrant that doesn't contain one of these points (-2,3), (3,-4) (2,3)
Third quadrant
400
Is it a function?
YES because it passes the Vertical Line Test
500
The test to tell if a graph is a function
Vertical Line Test
500
Evaluate f(x)=-(4x+2) if x=7
-30
500
What is the range of (4, 5) and (7, 6)?
5 & 6
500
What quadrant is the point (0,2) in?
None because the point sits on the y-axis
500
Is it a function? 
NO because it does not pass the Vertical Line Test