Casio CFX-9850GC PLUS Manual Grafik - Halaman 6

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9 - 2

Analyzing a Function Graph

k k k k k Determining Points of Intersection for Two Graphs

Specify Graph Y1.

Specify the second graph (Graph Y3, here) to determine the points of intersection.

148

Example

To draw the following three graphs and then determine the

points of intersection for the Graph Y1 and Graph Y3.

View Window: (A)

Y1 =

+ 1

Y2 =

(

Y3 =

!5(G-Solv)

5(ISCT)

(This puts the unit into standby waiting

for selection of a graph.)

• Pressing w changes " k " into "

specification of the first graph.

• Use f and c to move " k " on the

second graph.

• Intersections are found starting from the left.

• The next intersection to the right is found. If

there is no intersection to the right, nothing

happens when you perform this operation.

• You can use d to move back to the left.

• If there are only two graphs, pressing 5 (ISCT) directly displays the intersec-

tions (selection of the graph is not required).

• Note that the above operation can be performed on rectangular coordinate (Y=)

and inequality graphs only.

+ 2) (

– 2)

◆

" for