Evaluating and Finding Functions

Flashcard
•
Mathematics
•
9th Grade
•
Hard
+4
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a function?
Back
A function is a relation that assigns exactly one output for each input from a set of inputs.
Tags
CCSS.8.F.A.1
2.
FLASHCARD QUESTION
Front
How do you denote a function?
Back
Functions are typically denoted by letters such as f, g, or h, followed by the variable in parentheses, e.g., f(x).
Tags
CCSS.HSF.IF.A.1
CCSS.8.F.A.1
3.
FLASHCARD QUESTION
Front
What does f(x) = x + 3 represent?
Back
This is a linear function where the output increases by 3 for every unit increase in x.
Tags
CCSS.HSF.LE.A.2
CCSS.8.F.B.4
4.
FLASHCARD QUESTION
Front
How do you find the value of x when f(x) = 8 for f(x) = x + 3?
Back
Set the equation x + 3 = 8, then solve for x: x = 8 - 3 = 5.
Tags
CCSS.HSF.IF.A.2
5.
FLASHCARD QUESTION
Front
What is the meaning of f(4) in a function?
Back
f(4) represents the output of the function when the input is 4.
Tags
CCSS.HSF.IF.A.2
6.
FLASHCARD QUESTION
Front
If f(x) = -x + 3x + 1, what is f(4)?
Back
f(4) = -4 + 3(4) + 1 = -4 + 12 + 1 = 9.
Tags
CCSS.HSF.IF.A.2
7.
FLASHCARD QUESTION
Front
How do you read f(x)?
Back
It is read as 'f of x'.
Tags
CCSS.HSF.IF.A.1
CCSS.8.F.A.1
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