Solving Functions (Function Notation)
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
+3
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is function notation?
Back
Function notation is a way to represent functions using symbols. It typically uses the letter 'f' followed by parentheses, such as f(x), where 'x' is the input variable.
Tags
CCSS.8.F.A.1
CCSS.HSF.IF.A.1
2.
FLASHCARD QUESTION
Front
How do you evaluate a function at a specific value?
Back
To evaluate a function at a specific value, substitute the value into the function's equation. For example, to evaluate f(x) = x^2 + 3 at x = 2, calculate f(2) = 2^2 + 3 = 7.
Tags
CCSS.HSF.IF.A.2
3.
FLASHCARD QUESTION
Front
What does it mean to solve for x in a function?
Back
Solving for x in a function means finding the value of x that makes the function equal to a specific value. For example, if f(x) = 7, find x such that 3x + 1 = 7.
Tags
CCSS.HSF.IF.A.2
4.
FLASHCARD QUESTION
Front
What is the process to find f(0) for a function?
Back
To find f(0), substitute 0 into the function's equation. For example, for f(x) = -3(x - 1), calculate f(0) = -3(0 - 1) = 3.
Tags
CCSS.HSF.IF.A.2
5.
FLASHCARD QUESTION
Front
How do you set up an equation from function notation?
Back
To set up an equation from function notation, equate the function to a value. For example, if f(x) = 5x - 1 and you want to find x when f(x) = 19, set up the equation 5x - 1 = 19.
Tags
CCSS.HSF.IF.A.2
6.
FLASHCARD QUESTION
Front
What is the value of x if f(x) = 10 and f(x) = 9x + 1?
Back
To find x, set 9x + 1 = 10. Solving gives 9x = 9, so x = 1.
Tags
CCSS.HSF.IF.A.2
7.
FLASHCARD QUESTION
Front
Evaluate f(-2) if f(x) = x^2 + 3.
Back
f(-2) = (-2)^2 + 3 = 4 + 3 = 7.
Tags
CCSS.HSF.IF.A.2
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