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7th Grade Math / Lesson 4: Graphing Lines

 GRAPHING LINES   What will we be learning today? In this lesson, you will learn how to use a table to graph a line on a coordinate plane.Vocabulary words are found in this purple color throughout the lesson.         Remember to put these in your notebook.

 Graphing Lines Now that you are familiar with ordered pairs, we can look at graphing lines that come from equations. The ordered pairs come from the numbers that work in the equation. Take a look at the equation x + y = 9. Find some numbers that you can use for x and y in this equation. Put them into the table to keep track of them. Graphing Lines Now take these ordered pairs from the table and put them on the coordinate plane. They all come from the same equation, so they should line up in a straight line. Graphing Lines Try another one. Fill in the table with some numbers that work in the given equation. Graph the pairs of numbers to make a line.x - y = 2 Can you make a table of values that work for an equation? Can you graph the numbers from the table to make a line? Go back to the classroom to get to your homework and any other items you need to attend to.