3-4-7

Using Table & Graph

Generating a Number Table and Using It to Draw a Graph

After using a function to generate a number table, you can use the number table values to draw a graph. You can use number table values to draw two different types of graphs: a “connect type graph” on which points are connected by lines, or a “plot type graph” on which points are simply plotted, without being connected.

Example: To generate number tables for the functions y = 3x2 – 2 and y = x2 as the value of x changes from –3 to 3 in increments of 1, and then use the generated values to draw a graph

u ClassPad Operation

(1)On the application menu, tap T.

(2)On the Graph Editor window, input 3x2 – 2 in line y1, and x2 in line y2.

(3)Tap 6 to display the View Window dialog box, and then configure it with the following parameters.

xmin = –3,

xmax = 3,

xscale = 1

ymin = –2,

ymax = 10,

yscale = 2

(4)Tap 8 to display the Table Input dialog box, and then configure it with the following settings.

Start: –3, End: 3, Step: 1

(5)Tap #.

• This generates the number table and displays the result on the Table window.

20050501