Identifying Functions

Identifying Functions

Assessment

Flashcard

Mathematics

8th Grade

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 every input (x) has exactly one output (y).

2.

FLASHCARD QUESTION

Front

When is y a function of x?

Back

y is a function of x when every x value has only one corresponding y value.

3.

FLASHCARD QUESTION

Front

What does it mean if a table is not a function?

Back

A table is not a function if at least one x value is paired with more than one y value.

4.

FLASHCARD QUESTION

Front

Identify a value of x that makes this table not a function: (1, 2), (1, 3), (2, 4).

Back

1 is the value of x that makes this table not a function.

5.

FLASHCARD QUESTION

Front

In a mapping, how can you tell if y is a function of x?

Back

y is a function of x if every x value has only one y partner.

6.

FLASHCARD QUESTION

Front

What is the vertical line test?

Back

The vertical line test is a method to determine if a curve is a function; if a vertical line intersects the curve at more than one point, it is not a function.

7.

FLASHCARD QUESTION

Front

If a function has the points (2, 3), (2, 5), (3, 4), what can you conclude?

Back

This is not a function because the x value 2 is paired with two different y values.

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