Function/NOT a Function

Function/NOT a Function

Assessment

Flashcard

Mathematics

8th Grade

Practice Problem

Hard

CCSS
8.F.A.1, HSF.IF.A.1

Standards-aligned

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).

Tags

CCSS.8.F.A.1

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) has more than one output (y-value).

Tags

CCSS.8.F.A.1

3.

FLASHCARD QUESTION

Front

How can you determine if a graph represents a function?

Back

Use the vertical line test: if a vertical line intersects the graph at more than one point, it is not a function.

4.

FLASHCARD QUESTION

Front

What does the ordered pair (1,5) represent in a function?

Back

In a function, (1,5) means that the input 1 corresponds to the output 5.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

5.

FLASHCARD QUESTION

Front

Is the relation {(1,5),(1,7),(3,9),(4,11)} a function?

Back

No, because the input 1 has two different outputs (5 and 7).

Tags

CCSS.8.F.A.1

6.

FLASHCARD QUESTION

Front

What is the vertical line test?

Back

The vertical line test is a method to determine if a graph is a function by checking if any vertical line crosses the graph more than once.

7.

FLASHCARD QUESTION

Front

If a relation has the pairs (2,3), (2,4), (5,6), is it a function?

Back

No, because the input 2 has two outputs (3 and 4).

Tags

CCSS.8.F.A.1

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