Vocabulary
All of the x-values or input values in a relation are part of the _________
What is domain?
Is the set of ordered pairs a function? {(2, 1) (4, 1) (6,3) (5,2)}
YES
The domain of the relation {(1,0), (-2, 3), (3, 4)} would be:
What is {-2, 1, 3}?
The name of the horizontal axis is called______________.
What is the x-axis?
All of the y-values or output values are part of the ___________
What is range?
A function is a special type of relation where every ___ value has exactly one output, or ___ value.
What is x, y?
Write the range of this relation: {(8,7), (-6, 3), (2, 0)}
What is {0, 3, 7}?
Another name for the coordinates (0,0) would be the _______________.
What is the origin?
A ________________ is any set of ordered pairs.
What is relation?
Determine if the following relation is a function. Explain why or why not. {(9, 0), (3, 0), (2, 2), (-3, -4)}
What is YES? Because the x-values do NOT repeat
Name three ways to show a relation.
What is a set of ordered pairs, graph, table or mapping diagram?
The number of quadrants on a coordinate plane.
What are four?
A __________________ assigns each element in set A (x-values) to exactly ONE element in set B (y-values).
What is a function?
See graph and explain why or why not it is a function
What is NO because it fails the vertical line test.
Use whiteboards to show the relation {(0, 4), (-7, 5), (8, 3), (-7, 2)} as a mapping diagram.
See white boards for mapping.
Domain (-7, 0, 8) Range (2, 3, 4, 5)
Give an example of an ordered pair and what quadrant your example would be found in.
Answers will vary.
This can be used to determine if a graph is or is not a function.
What is the vertical line test?
See graph and explain why or why not it is a funciton.
What is YES because each x-value maps to only one y-value.
Show the relation {(6, 4), (-3, -2), (6, 0), (-4, 4)} as a graph on your whiteboard. Write the domain and range.
See whiteboards. D: {(-4, -3, 6)} R: {(-2, 0, 4)}
Write an example of an ordered pair. Circle the first number. This number is called the________________.
What is the x coordinate?