Casio CFX-9970G User Manual page 172

9 - 2
Analyzing a Function Graph
k k k k k Determining Points of Intersection for Two Graphs
Example
Specify Graph Y1.
• Pressing w changes " k " into "
specification of the first graph.
Specify the second graph (Graph Y3, here) to determine the points of intersection.
• 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.
To draw the following three graphs and then determine the
points of intersection for the Graph Y1 and Graph Y3.
View Window: (A)
x
Y1 = + 1
x x x
Y2 = ( + 2) (
x
Y3 = 2
!5(G-Solv)
5(ISCT)
(This puts the unit into standby waiting
for selection of a graph.)
w
cw
e
– 2)
!
" for
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