Function Vocabulary
Evaluating Function Rules
Continuity of Graphs
Graphing
Is it a Function?
100
True or False: A relation is a set of ordered pairs
What is TRUE?
100
Evaluate f(x)=-3x if x=2
What is -6?
100
What is a discrete graph?
A graph where no dots are connected.
100
How do you graph the point (1,2)?
What is you go right 1 unit on the x-axis then go up 2 units on the y-axis?
100
Is it a function?
{(2, 3), (4, 5), ( -2, 6)}
What is YES because x does not repeat?
200
The set of first coordinates of a relation or a function
What is Domain?
200
Evaluate f(x)=2x+1 if x=-2
What is -3?
200
What is a continuous graph?
A graph where the lines are connected.
200
How do you graph the point (-3,4)?
What is you 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?
What is False, the points fail the vertical line test
300
The set of second coordinates in a relation or a function
What is Range?
300
Evaluate f(x)=-3 - x if x=6
What is -9?
300
How can we tell if a graph is neither discrete nor continuous?
There will be breaks in the graph and it will often look like there is a mixture of both discrete and continuous points on the graph.
300
How do you graph the point (-9,-10)
What is you go left 9 units on the x-axis then go down 10 units on the y-axis?
300
Is it a function?
| x | y |
| 2 | 4 |
| 1 | 5 |
| 2 | 6 |
What is NO because x repeats?
400
A relation that assigns exactly one value in the range to each value in the domain?
What is a function?
400
Evaluate f(x)=25 + 4x if x=5
What is 45?
400
Draw an example of a continuous function.
See examples.
400
How do you graph the point (0,4)?
What is you don't move on the x-axis then go up 4 units on the y-axis?
400
Is it a function?
What is YES because it passes the Vertical Line Test?
500
What is the test to tell if a graph is a function?
What is the Vertical Line Test?
500
Evaluate f(x)=-(4x+2) if x=7
What is -30
500
Draw an example of a discrete AND neither discrete nor continuous function.
See examples.
500
How do you graph the point (5,0)?
What is you go right 5 units on the x-axis then don't move on the y-axis?
500
Is it a function? 
What is NO because it does not pass the Vertical Line Test?