Functions - What Are They?

Functions - What Are They?

Nov 03, 2020

Connect 4 READY

• Camera on (seeing top of head/background)

• Mic muted

• Have outs: - notebook, calculator, pencil

• Liked READY GIF in class chat

Announcements

• Unit 3 Exam on Friday!

• Review Day tomorrow! (Don't miss it!)

At the end of class I will know

• What is a function?

• What is meant by input and output?

• How to identify a function!

So what is a function, listen up....

Multiple Choice

A function is a relationship

• where every input value (x - value) has ONLY ONE output value (y - value)

• where inputs (x-values) can have more than one output (y-value)

So what do functions look like?

Graphs

MUST PASS the Vertical Line Test!

Fill in the Blanks

_ are functions because they pass the Vertical Line Test.

Tables

The input values (x values) CANNOT REPEAT!

Poll

This table is a function because every input has ONLY ONE output!

• True

• False

Mapping Diagrams

The input values (x values) CANNOT HAVE 2 ARROWS!

Open Ended

The mapping diagrams that are functions are

Ordered Pairs

The input values (x values) CANNOT REPEAT!

Multiple Choice

Which ordered pair is NOT a function?

• A

• B

• C

• D

Multiple Choice

If a graph FAILS the Vertical Line test it is a function.

• True

• False

• I don't know

Open Ended

The table is a function, yes or no? _

Multiple Choice

Which ordered pair is a function?

• A

• B

• C

• D

Poll

This mapping diagram is a function.

• True

• False

ASYNC WORK TIME

• Further Practice - Delta Math (CA REVIEW - Is It A Function?)

• Exit Ticket - Schoology (11.04 What Are Functions Exit Ticket)

• Stay on the call if: you need further help, don't have your DeltaMath account set up or don't know how to navigate Schoology