Function Vocab
Evaluating Function Rules
If-then statement
Relations
Is it a Function?
1
True or False-A relation is a set of ordered pairs
TRUE
1
Evaluate f(x)=-3x if x=2
-6
1
If-then is also known as...
Conditional Statement
1
State the domain of the function {(4,-2),(-1,1),(2,-3),(3,0)}
What is {4,-1,2,3}?
1
Is it a function? {(2, 3), (4, 5), ( -2, 6) (1, 3), (-4, 5), ( -12, 6) (12, -3), (14, 5), ( 22, 6), (7,9)}
Yes
2
The set of first coordinates of a relation or a function
Domain
2
Evaluate f(x)=2x+1 if x=-2
-3
2
p: Teacher Tine is beautiful
q: She is still single.
Write in if then.
If Teacher tine is beautiful, then she's still beautiful.
2
State the range of the function {(4,-2),(-1,1),(2,-3),(3,0)}
What is {-2,1,-3,0}?
2
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
3
The set of second coordinates in a relation or a function
Range
3
Evaluate f(x)=-3 - x if x=6
-9
3
Known as the contradiction of the statement.
Negation
3
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}?
3
Is it a function?
| x | y |
| 2 | 4 |
| 1 | 5 |
| 2 | 6 |
NO
4
A relation that assigns exactly one value in the range to each value in the domain?
Function
4
Evaluate f(x)=25 + 4x if x=5
45
4
Tyler loves Cineune but got broken.
What is the hypothesis?
Tyler loves Cineune.
4
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}?
4
Yes or No. Is it a function?
2 ---> 6 and -4
4 ---> 6
6 ---> 3
Yes
5
The test to tell if a graph is a function
Vertical Line Test
5
Evaluate f(x)=-(4x+2) if x=7
-30
5
similar to a conditional statement. However, it is stronger because it is an if-and-only-if statement.
Biconditional statement
5
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}?
5
Is it a function?
What is NO because it does not pass the Vertical Line Test?