Functions Introduction

Functions

a function is when every x (input) has one y (output)

Multiple Choice

In an ordered pair such as (3,5), the first number is the x or input value.

• True

• False

Multiple Choice

In an ordered pair such as (2,3) the y value is the second number.

• True

• False

Multiple Choice

Identify the x value in (5,3)

• 3

• 6

• 8

• 5

Multiple Choice

In the ordered pair (-4,2), what is the y (output) value?

• -4

• 2

• -2

• 6

Multiple Choice

One of the x values is ____.

• 6

• 8

• 10

• 2

Multiple Choice

One of the y values is ____.

• 6

• 8

• 10

• 2

In a function x does NOT repeat with a different y

(3,4) (5,6) (7,8) is a function because every x has one y

In a function x does NOT repeat with a different y

(3,4) (3,6) (7,8) is NOT a function because 3 has two y's

In a function x does NOT repeat with a different y

The table is a function

Every x as one y​

In a function x does NOT repeat with a different y

The table is NOT a function

3 has multiple y values

Multiple Choice

Is (4,5) (6,7) (9,8) a function?

• yes

• no

Multiple Choice

Is (4,5) (6,5) (9,5) a function?

• yes

• no

Multiple Choice

Is (4,5) (4,5) (9,5) a function?

• yes

• no

Multiple Choice

Is (4,5) (4,8) (9,7) a function?

• yes

• no

Multiple Choice

Is the table a function?

• yes

• no

Multiple Choice

Is the table a function?

• yes

• no

Multiple Choice

Is the table a function?

• yes

• no