5-11-10

Function Analysis

Example

Draw the graph shown below and calculate the root for Y1.

 

Y1 = 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

1m GRAPH

2!3(V-WIN)1(INIT)J

3(TYPE)1(Y=)v(v+c)(v-c)w 6(DRAW)

3!5(G-SLV)1(ROOT)

5e e

Result Screen

#When analyzing a single graph, results appear as soon as you select an analysis function in step 3, so step 4 is not necessary.

#Root, local maximum value, local minimum value, and y-intercept can be calculated for rectangular coordinate graphs and inequality graphs only.

#Graph analysis is not possible for the graph whose function is the format X = constant.

#The y-intercept is the point where the graph crosses the y-axis.

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