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7th Grade Math / Lesson 4: Input/Output Tables

INPUT/OUTPUT TABLES
What will we be learning in this lesson?


  • In this lesson, you will look at creating input/output tables to find solutions.

    Vocabulary words are found in this purple color throughout the lesson. Remember to put these in your notebook.


INPUT/OUTPUT TABLES
 
  • Input/Output tables are great to use when finding solutions or creating graphs.
  • Input/Output tables can help organize your data and your work.
  • The words Input and Output mean just what they would appear to mean. Input values are the numbers that you are putting into the equation. Output values are the numbers that you get out of the equation - the answers.

 
  • Where x is the input and y is the output.


INPUT/OUTPUT TABLES
 
  • When creating input/output tables, it is your choice which values to use as input values (x-values). It is good to use positive and negative values in an input/output table, but it is not necessary.
  • Let's make an input/output table for the equation y = 6x - 2
  • Pick input values to use.
  • Let's use these


INPUT/OUTPUT TABLES
  • Now substitute these values in for x (input) and figure out the answer (output).

  • This could easily be used to make a graph of the equation by using the input and output values.
 


  • Can you create an input/output table for an equation?

  • Be sure to go back to your classroom to get any homework assignments or other activities you need to attend to.