5-10-7

Changing the Appearance of a Graph

kChanging the Graph Background

You can use the Setup screen to specify the memory contents of any picture memory area (Pict 1 through Pict 20) as the Background item. When you do, the contents of the corresponding memory area is used as the background of the graph screen.

Example 1 With the circle graph X2 + Y2 = 1 as the background, use Dynamic Graph to graph Y = X2 + A as variable A changes value from –1 to 1 in increments of 1.

Recall the background graph. (X2 + Y2 = 1)

!m(SET UP)ccccc 2(PICT)bwJ

(When the graph for X2 + Y2 = 1 is stored in Pict 1)

Draw the dynamic graph. (Y = X2 – 1)

↓↑

(Y = X2)

↓↑

(Y = X2 + 1)

• See “5-8 Dynamic Graphing” for details on using the Dynamic Graph feature.

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