Vocabulary
Vocabulary Examples
Domain and Range
Function?
Evaluate a Function
100
A relationship between a set of input values (x) and output values (y). Where for every input value (x), there can be only one output value (y).
What is a function?
100
Example: {(1,2), (4,7), (6,8), (10, -2), (3,5)}
What is a relation?
100
Find the domain of the following relation: {(1, 3) (5, 9) (-4, 3) (15,2)}
What is {-4, 1, 5, 15}?
100
Is the following relation a function? Why or why not? {(1, 3) (4, 6) (-2, 4)}
Yes, because no x's repeat.
100
Find f(2) for f(x) = x-1
What is 1?
200
Number quantities arranged in columns and rows. May contain input and output values of a functions. Another way to list ( x , y )
What is a table?
200
Example:
5 ----> 7
4 ----> 6
3 ----> -6
2 ----> -7
What is mapping?
200
Find the range of the following relation: {(1, 3) (5, 9) (-4, 3) (15,2)}
What is {2, 3, 9}
200
Is the following relation a function? Why or why not? D: {1, 3, 6, 9} R: {3, 5, 7, 11}
Yes, because the domain and range are the same size.
200
Find g(-2) for g(x)=x+7
What is 5?
300
An input value in a function or represents the input value in a word problem.
What is an independent variable?
300
Example: y or # of pickles.
What is a dependent variable?
300
Find the domain of the following relation: {(5, 7) (5, 11) (-11, 13) (12, -2) (-5, 7)}
What is {-11, -5, 5, 12}?
300
Is the following relation a function? Why or why not? {(5, 2) (6, 3) (5, 7) (3, 9) (9, 3)}
No, there is a repeated x. (5, 2) and (5, 7)
300
Find h(3) for h(x)=9-4x
What is -3?
400
The output numbers of a function. It can also be the limits of a graph (the height of the graph) and the y variable of a set of ordered pairs.
What is the range?
400
Example: D:{1, 2, 3,} or 1 < x < 3
What is the domain?
400
Find the range of the following relation: {(5, 7) (5, 11) (-11, 13) (12, -2) (-5, 7)}
What is {-2, 7, 11, 13}?
400
Is the following relation a function? Why or why not? D: {4, 6, 9} R: {3, 5, 7, 8}
No, the domain is smaller than the range so at least one domain value is repeated.
400
Find j(-5) for j(x)=3+5x
What is -22?
500
A test performed on a graph to determine if the graph is a function.
What is the vertical line test?
500
Example: f(x)=3x+2 or g(x)=2x-5
What is function notation?
500
{(9, 7) (8, 3) (-5, 9) (3, -5), (11, 3), (7, 10)} Is the following set of numbers the domain or range of the previous relation? {-5, 3, 7, 8, 9, 11}
What is the domain?
500
Is the following relation a function? Why or why not? {(3, 7) (4, 8) (5, 9) (1, 6) (9, 6) (2, 7) (-3, 8)}
Yes, even though there are y's that repeat, no x's repeat.
500
Find p(-4) for p(x)=-x+2
What is 6?
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