Function Vocab
Evaluating Function Rules
Domain and Range
Is it a Function?
Intervals of Increase/Decrease
100
True or False-A relation is a set of ordered pairs
What is TRUE?
100
f(x)=-3x
What is f(2)?
What is -6?
100
State the domain of the function {(4,-2),(-1,1),(2,-3),(3,0)}
What is {-1,2,3,4}?
100
Is it a function?
{(2, 3), (4, 5), ( -2, 6)}
What is YES because x does not repeat?
100
What are the only values we look at for intervals of increase and decrease?
The domain or x-values.
200
The set of first coordinates of a relation or a function
What is Domain?
200
f(x)=2x+1
What is f(-2)
What is -3?
200
State the range of the function {(4,-2),(-1,1),(2,-3),(3,0)}
What is {-3,-2,0,1}?
200
Using the vertical line test, does the graph represent a function?
What is NO, the graph fails the vertical line test
200
What direction do you read a graph to determine if it is increasing or decreasing?
Left to Right.
300
The set of second coordinates in a relation or a function
What is the range?
300
f(x)=-3 - x
What is f(6)?
What is -9?
300
Find the domain and range of
What is a domain of [-1,2] and a range of [0,4]?
300
Is it a function?
| x | y |
| 2 | 4 |
| 1 | 5 |
| 2 | 6 |
What is NO because x repeats?
300
Give the intervals of increase and decrease for the following function:
Decrease: (-1, 0)
Increase: (0, 2)
400
A relation that assigns exactly one value in the range to each value in the domain?
What is a function?
400
f(x)=4x - 10
What is f(x - 4)?
4x - 26
400
Find the domain and range of the relation:
Domain: [0, 3]
Range: [5, 8]
400
Is it a function?
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What is YES because it passes the Vertical Line Test?
400
Give the intervals of increase and decrease for the following function:
"Decrease: " (-infty,0)
"Increase: " (0, infty)
500
True or False: The independent variable is the y variable
What is false?
500
f(x) = 5x + 12
What is f(-2x - 5)?
-10x - 23
500
Find the domain and range of the function:
"Domain: " (-infty, infty)
"Range: " [-4, infty)
500
Is it a function?
What is NO because it does not pass the Vertical Line Test?
500
Give the intervals of increase and decrease for the following function:
"Decrease: " (-infty, -2) and (0, infty)
"Increase: " (-2, 0)