Introduction to Functions
Flashcard
•
Mathematics
•
8th - 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 that assigns exactly one output for each input from a set of inputs.
Tags
CCSS.8.F.A.1
2.
FLASHCARD QUESTION
Front
What is the domain of a function?
Back
The domain of a function is the set of all possible input values (x-values) for which the function is defined.
3.
FLASHCARD QUESTION
Front
What is the range of a function?
Back
The range of a function is the set of all possible output values (y-values) that the function can produce.
4.
FLASHCARD QUESTION
Front
How do you find f(3) for the function f(x) = 2(x + 4) + 3?
Back
f(3) = 2(3 + 4) + 3 = 2(7) + 3 = 14 + 3 = 17.
Tags
CCSS.HSF.IF.A.2
5.
FLASHCARD QUESTION
Front
What is an ordered pair?
Back
An ordered pair is a pair of numbers used to represent a point in a coordinate system, written as (x, y).
Tags
CCSS.HSA.CED.A.3
6.
FLASHCARD QUESTION
Front
Given the ordered pairs {(1,3), (5,15), (2,6), (4,12), (3,9)}, what is the range?
Back
The range is {3, 6, 9, 12, 15}.
Tags
CCSS.8.F.A.1
CCSS.HSF.IF.A.1
7.
FLASHCARD QUESTION
Front
If f(x) = 4, what is the value of x if f(x) = 2x + 2?
Back
x = 1.
Tags
CCSS.HSF.IF.A.2
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