Function Vocab
Graphing
Is it a Function?
Is it a Function? pt.2
Evaluating Function Rules
100
True or False-A relation is a set of ordered pairs
What is TRUE?
100
The point (1,2) is in this quadrant
What is the 1st quadrant?
100
Is it a function?
{(2, 3), (4, 5), ( -2, 6)}
What is YES because x does not repeat?
100
True or False. A relation is a function if every input has exactly one output.
What is TRUE?
100
Evaluate f(x)=-3x if x=2
What is -6?
200
The set of first coordinates of a relation or a function
What is the x-values?
200
The point (4, -3) is in this quadrant.
What is the 4th quadrant?
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
200
Is it a function? {(1, 3), (2, 5), (3, 7), (4, 9)}
What is YES.
200
Evaluate f(x)=2x+1 if x=-2
What is -3?
300
The set of second coordinates in a relation or a function
What is the y-values?
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?
300
Is the following set of ordered pairs a function? Explain why or why not.
{(2, 4), (3, 6), (2, 8), (5, 10)}
What is No? The input 2 has two different outputs.
300
Evaluate f(x)=-3 - x if x=6
What is -9?
400
A relation that assigns exactly one value in the range to each value in the domain?
What is a function?
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?
What is YES because it passes the Vertical Line Test?
400
What test can you use to determine whether a graph represents a function?
What is the vertical line test?
400
Evaluate f(x)=25 + 4x if x=5
What is 45?
500
The test to tell if a graph is a function
What is the Vertical Line Test?
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?
What is NO because it does not pass the Vertical Line Test?
500
A relation contains the ordered pairs (−3, 2), (0, 5), (4, 2), and (7, 5). Is this a function even though some outputs repeat? Explain.
What is Yes? Each input has exactly one output. Different inputs can share the same output.
500
Evaluate f(x)=-(4x+2) if x=7
What is -30