| Vocabulary | Domain and Range | Dependent & Independent Variables | Identifying Functions |
|---|---|---|---|
|
What is a function?
A special type of relation that pairs each input with an output
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What is the domain of the relation below?
f(x) ={ (1,3) , (2,4), (3,5) , (7,0) }
1,2,3, 7
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A snow vendor collects data on the number of snow cones he sells per day and the daily temperatures? What is the dependent variable?
The number of snow cones
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Is y=2x+ 1 a function?
Yes
|
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What is a relation?
A set of ordered pairs
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What is the range of the relation below?
f(x) ={ (1,8) , (2,3), (4,6) , (90,2) }
8,3,6,2
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A teacher wants to see if there is a relationship between her students' test scores and the amount of time they study. What is the independent variable?
The amount of time they study
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Is y=1.5x- 0.5
Yes
|
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What is an independent value?
The input of a function.
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What is the domain of the following relation? {(5,-2),(-3,-2),(0,-2),(-2,-2)}
-3,-2,0,5
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Independent Variables are the labels on the ______axis?
X-Axis
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y=2x+ 1
Function or not?
Yes
|
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What is dependent value?
The output of a function.
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What is the range of the following relation? {(5,-2),(-3,-2),(0,-2),(-2,-2)}
{-2}
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In the following function, which is the independent variable? (x or y?) y = 3x + 2
The X
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Is y=x3- 1 a function?
No
|
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What does a vertical line test line?
Tells whether a graph is a function.
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Find the range of the following function? y=2x
{2}
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What is the Independent and dependent variable in the equation y=2x+9
Independent= x
Dependent= y |
Is y=x2 a function?
No
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