Casio fxcp400 fxcp400 User Manual
Chapter 3: Graph & Table Application
113
3. To obtain other roots, press the left or
right cursor key, or tap the left or right
graph controller arrows.
graph controller arrows.
• If there is only one solution, the pointer
does not move when you press the
cursor key or tap the graph controller
arrow.
cursor key or tap the graph controller
arrow.
The following are examples for other G-Solve commands.
0307
To obtain the point of intersection for two graphs
y
=
x
+ 1 and
y
=
x
2
0308
To determine coordinates at a particular point on a graph
0309
To graph the function
y
=
x
(
x
+ 2)(
x
– 2) and obtain its definite integral in the domain of 1
s
x
s 2
0310
To graph the function
y
=
x
3
– 1 and determine its inflection point
0311
To graph the function
y
=
x
2
–
x
– 2 and obtain the volume of a solid of revolution as the line segment
from
x
= 1 to
x
= 2 is rotated on the
x
-axis
3-7
Modifying a Graph
A graph can be modified in real time as you change its coefficients and/or variable values. The Graph & Table
application provides you with two methods for modifying a graph.
application provides you with two methods for modifying a graph.
• “Direct Modify” changes the coefficient in the equation of the original graph. This method can be used when
you are modifying a single graph.
• “Dynamic Modify” changes the values assigned to common variables of multiple functions. Use Dynamic
Modify when you want to modify multiple graphs at the same time.
u To modify a single graph (Direct Modify)
0312
To graph the functions
y
= 2
x
2
+ 3
x
– 1 and
y
= 2
x
+ 1, and then find out how a change in the
coefficients of each function affects the shape and position of the graphs
u To modify multiple graphs simultaneously (Dynamic Modify)
0313
To graph the functions
y
=
ax
2
–
b
and
y
=
ax
+
b
, and then find out how a change in variable
a
from 1 to
4 and a change in variable
b
from –2 to 2 affect the shape and position of each graph