Casio FX-9860G vxw, Xscale, Yscale, Example, 6(DRAW), Xmax = 5, Ymax = 5, 1m GRAPH, Xmin = –5, Ymin = –5, Y1 = x + 1, Y2, 3(TYPE)1(Y=) v+bw, 2!5(G-SLV)5(ISCT)

5-11-12

Function Analysis

Example	Graph the two functions shown below, and determine the point of
	intersection between Y1 and Y2.
	Y1 = x + 1, Y2 = x2
	Use the following V-Window settings.
	Xmin = –5,	Xmax = 5,	Xscale = 1
	Ymin = –5,	Ymax = 5,	Yscale = 1

Procedure

1m GRAPH

!3(V-WIN)-fwfwbwc -fwfwbwJ3(TYPE)1(Y=) v+bwvxw

6(DRAW)

2!5(G-SLV)5(ISCT)

…

6e

Result Screen

#In the case of two graphs, the point of intersection is calculated immediately after you press !55 in step 2.

#You can calculate the point of intersection for rectangular coordinate graphs and inequality graphs only.

#Either of the following can cause poor accuracy or even make it impossible to obtain solutions.

•When a solution is a point of tangency between two graphs

•When a solution is an infl ection point

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