You can use your graphing calculator to not only graph equations of lines, but also to generate a table of data.

- Make sure that your calculator has the Plots Off, Y= functions cleared, the MODE and FORMAT are set at “stage left”, and the lists are cleared.
- Press the
button. With your cursor in the Y*Y=*_{1}line, type**2****+3**thenYou should have the equation y = 2x + 3 entered into the calculator.**Enter**. - Press the
key. Choose option*ZOOM***6**for*ZStandard*. This gives you a coordinate plane with –10 to 10 as its x and y values. - Press the
button, then*2*^{nd}) to see a table of values for your equation.**TABLE**(shift of GRAPH - Fill out the table below with 6 values for x and y.
- Press the
button to see the line again and sketch what you see on the calculator on the coordinate plane.*GRAPH*

- Repeat the process with the equation 4x + y = -5.

- Type the equation y=(2x – 6)/3 in
*Y*. Press_{1}*2*then^{nd}*TBLSET (shift of WINDOW).*Change*TblStart =*to -6 and Δ*TBl =*to 3. Press*2*then^{nd}*TABLE*to view the values for x and y. Record your table below.

- Why did 2x-6 have to be in parenthesis in number 8?
- Why did we choose Δ
*TBl =*to be equal to 3?

A printable version of this activity is available for classroom use. Tables on TI Graphing Calculators