5-10-2

Changing the Appearance of a Graph

Example

Draw a line that is tangent to point (2, 0) on the graph for

 

y = x (x + 2)(x – 2).

 

 

Use the following V-Window settings.

 

Xmin = –6.3,

Xmax = 6.3,

Xscale = 1

 

Ymin = –3.1,

Ymax = 3.1,Yscale = 1 (initial defaults)

Procedure

1mGRAPH

2!3(V-WIN) 1(INIT)J3!m(SET UP)cccccc1()J43(TYPE)1(Y=)v(v+c)(v-c)w

56(DRAW)

6!4(SKTCH)2(Tang)7e~ew*1

Result Screen

*1 You can draw a tangent line in succession by moving the “” pointer and pressing w.

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