Function Vocab
Evaluating Function Rules
Graphing
Is it a Function?
100
What goes into a function
What is the input?
100
Evaluate f(x)=-3x if x=2
What is -6?
100
The horizontal axis
What is the x-axis
100
Is it a function?
{(2, 3), (4, 5), ( -2, 6)}
What is YES because x does not repeat?
200
The set of all x values of a relation or a function
What is Domain?
200
Evaluate f(x)=2x+1 if x=-2
What is -3?
200
The vertical axis
What is 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 all y-values in a relation or a function
What is the range?
300
Evaluate f(x)=-3 - x if x=6
What is -9?
300
The point that crosses the x-axis
X intercept
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
The point that crosses the vertical axis
What is the y-intercept
400
Is it a function?
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What is YES because it passes the Vertical Line Test?
500
What comes out of a function
What is the output?
500
Evaluate f(x)=-(4x+2) if x=7
What is -30
500
A line that is not straight
What is a curved line
500
Is it a function?
What is NO because it does not pass the Vertical Line Test?