Intro to Functions

Intro to Functions

By Ana Rodriguez

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• ​Check –In

• Warm – Up

• Do You Know It?

• Graphic Organizer: What Is A Function?

• Skills Practice: Functions

• Exit Ticket ​

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​Some text here about the topic of discussion.

Agenda

Open Ended

How was your weekend and how can you make this weekend productive?

Multiple Choice

Alan has embarked on a new exercise program on his new treadmill. The graph at the right shows his heart rate during one of his daily 40 minute workouts.

What is the length of Alan’s warm – up?

• 2 minutes

• 5 minutes

• 3 minutes

• 70 minutes

Multiple Choice

Alan has embarked on a new exercise program on his new treadmill. The graph at the right shows his heart rate during one of his daily 40 minute workouts.

For how many minutes did Alan maintain a constant heart rate?

• 10 minutes

• 15 minutes

• 20 minutes

• 30 minutes

Multiple Choice

Is the following graph linear or non linear?

• Linear, because it forms a straight line.

• Non linear, because it contains curves.

Multiple Choice

Is the following graph linear or non linear?

• Linear, because it forms a straight line.

• Non linear, because it contains curves.

Do You Know It?

• With your partner, discuss in your own words what a function is and include an example of a function.

• Think about what happens when you….

• ​buy from a vending machine

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Subject | Subject

• Gambling:  When you put in $5, will you always win?

• Remote Control: When you push Power button, what happens?

• Hours of sleep: did everyone sleep the same number of hours last night?

Is there more than one possible outcome?

Now Think About The Following Examples?

Graphic Organizer: What is a Function?

On the handout you will be taking notes, make sure you have a pencil with you.

Fill in the Blanks

A function is a relation where each input has exactly

output.

Fill in the Blanks

In a function the inputs represent the

values.

Fill in the Blanks

In a function the outputs represent the

values.

Open Ended

What are the three ways to represent a function?

Open Ended

Write a summary of today's lesson in two sentences.

Poll

What's your level of understanding on functions?

I can represent represent relations and functions using tables, diagrams and graphs.

I can identify relations that are functions.

• Excellent! I got this :)

• Good! I understand it :)

• Somewhat! Need more practice :/

Skills Practice: Functions

Complete all the questions, if you need help raise your hand.