What is a function?
Fall benchmark 8th grade math

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Mathematics
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A function is a relationship between a set of inputs and a set of possible outputs where each input is related to exactly one output.
2.
FLASHCARD QUESTION
Front
Which of the following is NOT a function?
Back
A relation where an input corresponds to multiple outputs is NOT a function.
3.
FLASHCARD QUESTION
Front
How do you represent a linear relationship between two variables?
Back
A linear relationship can be represented by a function in the form y = mx + b, where m is the slope and b is the y-intercept.
4.
FLASHCARD QUESTION
Front
What is the formula to calculate the cost of truffles per pound if 5 pounds cost $89.95?
Back
The cost per pound is calculated as y = (89.95/5)x.
5.
FLASHCARD QUESTION
Front
What does it mean for a graph to be proportional?
Back
A graph is proportional if it passes through the origin (0,0) and shows a constant ratio between the variables.
6.
FLASHCARD QUESTION
Front
What is a non-proportional relationship?
Back
A non-proportional relationship does not pass through the origin and has a varying ratio between the variables.
7.
FLASHCARD QUESTION
Front
How can you approximate the time it takes to run a distance based on a scatter plot?
Back
You can use the trend of the data points in the scatter plot to estimate the time for a specific distance.
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