1 / 6

Graphing Lines

Graphing Lines. Graphing Lines. The best way to learn about lines is to work with them without a calculator. We are going to practice graphing lines by finding our own ( x,y ) values. First, we will see how plugging in an “x” value will give you a “y” value. Graphing Lines.

ardith
Télécharger la présentation

Graphing Lines

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Graphing Lines

  2. Graphing Lines • The best way to learn about lines is to work with them without a calculator. • We are going to practice graphing lines by finding our own (x,y) values. • First, we will see how plugging in an “x” value will give you a “y” value.

  3. Graphing Lines • Do the points (2,2) and (-3,5) line on the line: y = 3x – 4? • Plug in the “x” value and see if it equals the “y” value. • (2,2) • 2 = 3(2) – 4 • 2 = 6 – 4 • 2 = 2 • Yes, (2,2) lies on the line. • (-3,5) • 5 = 3(-3) – 4 • 5 = -9 – 4 • 5 = -13 • No, (-3,5) is not on the line.

  4. Graphing Lines • To graph lines without a calculator, we will use a table. • We will pick the “x” values and plug them into the equation to get the “y” values. • How do we know what “x” values to pick? • I always use my favorites (-2, -1, 0, 1, 2) unless the equation has a fraction. • I will show you as we go!!

  5. Graphing Lines • Graph y = 2x - 4 using a table. Plug in the “x” values to find the “y” values. These are your ordered pairs. Graph these points on the graph.

  6. Graphing Lines • You can do this with any equation, not just lines. • Create a table and graph y = x2 + 2x + 1.

More Related