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Function Vocab
Evaluating Function Rules
Intercepts/Extrema/Increasing & Decreasing
Relations
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

Find x-intercept.

What is (3, 0)?

100
State the domain of the function {(4,-2),(-1,1),(2,-3),(3,0)}
What is {4,-1,2,3}?
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

State the interval (x-values) where it is decreasing.

What is (-2,0)?

200
State the range of the function {(4,-2),(-1,1),(2,-3),(3,0)}
What is {-2,1,-3,0}?
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 the range?
300
Evaluate f(x)=-3 - x if x=6
What is -9?
300

Find the y-intercept.


What is (0,0)?

300
Find the domain and range of {(-1,5),(2,3),(4,2),(-1,2)}
What is a domain of {-1,2,4} and a range of {5,3,2}?
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

Find the absolute minimum.


What is (2, -13)?

400
Find the domain and range of {(-3,4),(0,10),(11,8),(4,5)}
What is a domain of {-3,0,11,4} and a range of {4,10,8,5}?
400
Is it a function?
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
Evaluate f(x)=-(4x+2) if x=7
What is -30
500

State where the function is increasing.


What is (-∞, -2) and (0, ∞)?

500
Find the domain and range of {(-5,8),(-5,4),(6,9),(3,10)}
What is a domain of {-5,6,3} and a range of {8,4,9,10}?
500
Is it a function?
What is NO because it does not pass the Vertical Line Test?