What is a function?
Functions Review

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Mathematics
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
A function is a relation between a set of inputs and a set of possible outputs where each input is related to exactly one output.
2.
FLASHCARD QUESTION
Front
What does it mean for a function to be linear?
Back
A linear function is a function that can be graphically represented as a straight line. It has the form y = mx + b, where m is the slope and b is the y-intercept.
3.
FLASHCARD QUESTION
Front
What is the difference between input and output in a function?
Back
Input refers to the values you put into a function (x-values), while output refers to the values you get out of a function (y-values).
4.
FLASHCARD QUESTION
Front
How can you determine if a function is linear from a table of values?
Back
If the differences between consecutive y-values are constant for equal differences in x-values, the function is linear.
5.
FLASHCARD QUESTION
Front
What is the slope of a linear function?
Back
The slope of a linear function is a measure of how steep the line is, calculated as the change in y divided by the change in x (rise/run).
6.
FLASHCARD QUESTION
Front
What is a function rule?
Back
A function rule is an equation that describes the relationship between the input and output of a function.
7.
FLASHCARD QUESTION
Front
What does the term 'domain' refer to in a function?
Back
The domain of a function is the set of all possible input values (x-values) that the function can accept.
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