Is it a Function?

Is it a Function?

Assessment

Flashcard

Mathematics

8th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a function?

Back

A function is a relation where each input (x-value) has exactly one output (y-value).

2.

FLASHCARD QUESTION

Front

What is the definition of 'Not a Function'?

Back

A relation is not a function if at least one input (x-value) is associated with more than one output (y-value).

3.

FLASHCARD QUESTION

Front

Is the mapping {(1, 2), (1, 3), (2, 4)} a function?

Back

Not a Function, because the input 1 has two outputs (2 and 3).

4.

FLASHCARD QUESTION

Front

Is the mapping {(1, 2), (2, 3), (3, 4)} a function?

Back

Function, because each input has only one output.

5.

FLASHCARD QUESTION

Front

What does it mean if a table represents a function?

Back

It means that for every x-value in the table, there is only one corresponding y-value.

6.

FLASHCARD QUESTION

Front

Is the relation {(2, 3), (2, 5), (3, 6)} a function?

Back

Not a Function, because the input 2 has two outputs (3 and 5).

7.

FLASHCARD QUESTION

Front

What is an example of a function?

Back

The relation {(1, 2), (2, 3), (3, 4)} is a function.

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