Blast from the Past
Is It a Function?
Relations/Domain and Range
Vocabulary
100
Simplify (-17) + (-15).
What is (-32)?
100
The name of the test used to determine whether a graph is a function or not is called the ____________ _______ test.
What is vertical line?
100
The domain of the relation {(1,0), (-2, 3), (3, 4)} would be:
What is {1, -2, 3}?
100
The name of the horizontal axis is called______________.
What is the x-axis?
200
Is the following number rational or irrational? Why?
5.234234...
Rational, it repeats
200
A function is a special type of relation where every ___ value has exactly one output, or ___ value.
What is x, y?
200
Write the range of this relation:
{(8,7), (-6, 3), (2, 0)}
What is {7, 3, 0}?
200
Another name for the coordinates (0,0) would be the _______________.
What is the origin?
300
Simplify:
3[(8-5+2)-(3x4)]
What is (-21)?
300
Determine if the following relation is a function. Explain why or why not.
{(9, 0), (3, 0), (2, 2), (-3, -4)}
What is YES. For every "x" value, there is exactly one "y" value
300
Name three ways to show a relation.
What is a set of ordered pairs, graph, and table?
300
A set of ordered pairs is called a _______________.
What is a relation?
400
Solve for b:
-2b + 5 = (-15)
b = 10
400
What is YES. For every "x" value, there is exactly one "y" value
400
Show the relation {(0, 4), (-7, 5), (8, 3), (-7, 2)} as a table.
See white boards.
400
Give an example of an ordered pair and what quadrant your example would be found in.
Answers will vary.
500
Draw a rectangle with the following vertices:
A: (-5, 4)
B: (1, 4)
C: (1, 1)
D: (-5, 1)
Now rotate the shape 90 degrees counterclockwise. What are the coordinates of B'?
B' (-4, 1)
500
What is NO. There exist "x" values that have more than one "y" value; doesn't pass Vertical Line Test.
500
Show the relation {(6, 4), (-3, -2), (6, 0), (-4, 4)} as a table and a graph. Write the domain and range.
See whiteboards.
D: {(6, -3, -4)}
R: {(4, -2, 0)}
500
Write an example of an ordered pair. Circle the first number. This number is called the________________.
What is the x coordinate?