Identifying Functions

Identifying Functions

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

How can you determine if a graph represents a function?

Back

A graph represents a function if any vertical line drawn through the graph intersects it at most once.

3.

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 a vertical line crosses the graph more than once.

4.

FLASHCARD QUESTION

Front

What does it mean if an x-value has two corresponding y-values in a relation?

Back

If an x-value has two corresponding y-values, the relation is not a function.

5.

FLASHCARD QUESTION

Front

Can a function have the same y-value for different x-values?

Back

Yes, a function can have the same y-value for different x-values, as long as each x-value has only one y-value.

6.

FLASHCARD QUESTION

Front

What is an example of a function?

Back

An example of a function is f(x) = x^2, where each input x has a unique output.

7.

FLASHCARD QUESTION

Front

What is an example of a relation that is not a function?

Back

An example of a relation that is not a function is {(1, 2), (1, 3)}, where the x-value 1 has two different y-values.

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