Function Vocab
Evaluating Function Rules
Writing Function Rules
Graphing
Is it a Function?
100
True or False-A relation is a set of ordered pairs
What is TRUE?
100
Evaluate f(2) if f(x)=-3x
What is -6?
100
Given the points write a function rule
(0,-2);(1,-1); (2,0)
What is y=x-2?
100
The point (1,2) is in this quadrant
What is the 1st quadrant?
100
Is it a function? 
What is NO because it does not pass the Vertical Line Test?
200
The set of first coordinates or the x values of a relation or a function
What is Domain?
200
Evaluate f(-2) if f(x)=2x+1
What is -3?
200
Given the points write a function rule
(0,0); (1,3); (2,6)
What is y=3x?
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
Does the graph of the points (1,3) and (1,5) represent a function?
No, the points fail the vertical line test
300
The set of second coordinates or y values in a relation or a function
What is the range?
300
Evaluate f(6) if f(x)=-3 - x
What is -9?
300
Given the points write a function rule
(0,0); (2,1); (4,2)
What is y=x/2?
300
The signs of the points in quadrant 2
What is the (- , +)?
300
Is it a function?
| x | y |
| 2 | 4 |
| 1 | 5 |
| 2 | 6 |
What is NO because x repeats?
400
A relation where each input has exactly one output.
What is a function?
400
Find x if f(x) = 45 and f(x)=25 + 4x
x = 5
400
Given the points write a function rule
(-1,-1); (0,1); (1,3);(2,5)
What is f(x)=2x+1?
400
The quadrant that doesn't contain one of these points (-2,3), (3,-4) (2,3)
What is the third quadrant?
400
Is it a function?
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What is YES because it passes the Vertical Line Test?
500
The test to tell if a graph is a function
What is the Vertical Line Test?
500
Find x if f(x) = -30 and f(x)=-(4x+2)
x = 7
500
Given the points write a function rule
(0,5); (1,6); (2,7);(-1,4)
What is f(x)=x+5
500
What quadrant is the point (0,2) in?
What is none because the point sits on the y-axis
500
Is it a function? {(2, 3), (4, 5), ( -2, 6)}
Yes because the x values don't repeat