8.5g Identifying Functions

8.5g Identifying Functions

By Jesus Saldana

Open Ended

What do we remember of finding if tables, graphs and charts are functions?

I Will, We Will , You Will Identify Functions Using Ordered Pairs, Tables, Mappings and Graphs

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As previously mentioned, to find a function within ordered pairs; the X value can't repeat.

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Can you find the which set in the diagram is not a function....Explain your answer.

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Funtion and Ordered Pairs

Open Ended

Open Ended Questions:

Explain How you found out which one of the set or ordered pairs were function and which was not.

Give an example of ordered pairs that are a function to the best of your ability. Use the previous problem as an example to guide you.

To find a function within a table We must make sure that every X value has 1 Y value. If X has multiple values of Y, then it is not a function​

Functions and Tables

Draw

Draw an example of a table that is not a function and with your partner (neighbor) how you would start in solving this problem.

​For mappings to be a function....the input (x) must have only 1 output (y)

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Is this mapping a function? ​

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Functions and Mappings​

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Graphing is a visual representation of a table or a set of ordered pairs.

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To find if the graph is a function the x value must have only one y value

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We must do a Vertical Line Test to confirm the graph is a function​

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Functions and graphs

We use Vertical Line Test to make sure that the graphed function only intersects once with the vertical line.

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If it intersects more than once, it cannot be a function​

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​Vertical Line Test

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Multiple Select

Which of the graphs are examples of functions?

Open Ended

How did you know from the previous answers, which ones were and were not functions?

Multiple Choice

Find the set of ordered pairs that is a function.

• A

• B

• C

• D

Poll

How comfortable are you with understanding how to find a function within the various mediums we saw today (Graphing, Tables, Mapping, Ordered Pairs)?

• Very Much Ready

• Ready but nervous

• Somewhat But I Still need guidance

• Can we redo, Teacher?

Open Ended

If you are having difficulty with the lesson, what part of the lesson would you like for me to revise or adjust to better help you understand?