Introduction to Functions
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 a function?
Back
A function is a relation that assigns exactly one output (y-value) for each input (x-value).
Tags
CCSS.8.F.A.1
2.
FLASHCARD QUESTION
Front
What is the vertical axis on a coordinate plane called?
Back
The vertical axis is called the y-axis.
Tags
CCSS.5.G.A.1
3.
FLASHCARD QUESTION
Front
What is the horizontal axis on a coordinate plane called?
Back
The horizontal axis is called the x-axis.
Tags
CCSS.5.G.A.1
4.
FLASHCARD QUESTION
Front
What does it mean for a relation to be a function?
Back
A relation is a function if each x-value has only one corresponding y-value.
Tags
CCSS.8.F.A.1
5.
FLASHCARD QUESTION
Front
Identify if the following set is a function: {(-2, 4), (1, 5), (2, 6), (1, 7), (3, 8)}
Back
Not a Function, because the x-value 1 has two different y-values (5 and 7).
Tags
CCSS.8.F.A.1
6.
FLASHCARD QUESTION
Front
What is a solution to the equation y = 2x - 7?
Back
(2, -3) is a solution because when x=2, y=2(2)-7=-3.
7.
FLASHCARD QUESTION
Front
What is the definition of a coordinate plane?
Back
A coordinate plane is a two-dimensional surface formed by the intersection of a vertical line (y-axis) and a horizontal line (x-axis).
Tags
CCSS.5.G.A.1
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