Evaluating Functions
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
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 between a set of inputs and a set of possible outputs where each input is related to exactly one output.
Tags
CCSS.8.F.A.1
2.
FLASHCARD QUESTION
Front
What does f(x) represent in a function?
Back
f(x) represents the output of the function f for a given input x.
Tags
CCSS.8.F.A.1
CCSS.HSF.IF.A.1
3.
FLASHCARD QUESTION
Front
How do you evaluate a function at a specific point?
Back
To evaluate a function at a specific point, substitute the value of the input into the function's equation.
Tags
CCSS.HSF.IF.A.2
4.
FLASHCARD QUESTION
Front
Evaluate f(x) = 2x - 5 at x = -2.
Back
f(-2) = 2(-2) - 5 = -4 - 5 = -9.
Tags
CCSS.HSF.IF.A.2
5.
FLASHCARD QUESTION
Front
What is the value of f(0) if f(x) is represented graphically?
Back
The value of f(0) is the y-coordinate of the point where the graph intersects the y-axis.
Tags
CCSS.HSF.IF.A.2
6.
FLASHCARD QUESTION
Front
Given a mapping, how do you find the value of g(5)?
Back
Look for the input 5 in the mapping and find its corresponding output.
Tags
CCSS.8.F.A.1
CCSS.HSF.IF.A.1
7.
FLASHCARD QUESTION
Front
Evaluate r(x) = x^2 + 3x - 2 at x = -2.
Back
r(-2) = (-2)^2 + 3(-2) - 2 = 4 - 6 - 2 = -4.
Tags
CCSS.HSF.IF.A.2
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