function rule

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•
Mathematics
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a function rule?
Back
A function rule is a mathematical expression that describes the relationship between input (x) and output (y) values in a function.
2.
FLASHCARD QUESTION
Front
How do you determine if a relation is a function?
Back
A relation is a function if each input (x-value) has exactly one output (y-value) associated with it.
3.
FLASHCARD QUESTION
Front
What is the function rule for the table where x = 1, y = 6; x = 2, y = 11; x = 3, y = 16?
Back
y = 5x + 1.
4.
FLASHCARD QUESTION
Front
What does the equation c = 12p + 3 represent?
Back
It represents the total cost (c) of ordering p pizzas, where each pizza costs $12 and there is a $3 delivery fee.
5.
FLASHCARD QUESTION
Front
If the function rule is y = 2x + 3, what is the output when x = 4?
Back
y = 2(4) + 3 = 11.
6.
FLASHCARD QUESTION
Front
What is the slope in the function rule y = 3x + 2?
Back
The slope is 3.
7.
FLASHCARD QUESTION
Front
What does it mean if a function is linear?
Back
A linear function is a function that graphs to a straight line, which means it has a constant rate of change.
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