Casio fx-CG10 Advanced Operation Manual page 8

Sample Solution—Homemade Waffle Cones (continued)
From the table, we determined that the arc length to be removed should be
greater than 5 centimeters and less than 15 centimeters. To be more precise,
we either need to change the settings of our table, or use a different
representation—such as the graph or the equation.
students are able to move flexibly between and within representations, and
that they also learn to identify the strengths and weaknesses of each
representation when solving problems.
Graph:
To construct a graph using the calculator:
Press
mode. Notice the function used in the Table mode appears in the Graph
mode as well.
Set the view window, by press
arc removed must be greater than or equal to 0. We have chosen to set
the input values for the view-window as 0 to 75. To do so, input the
following values: X X min:
Similarly, the volume of the cone must be greater than or equal to 0; so
we have chosen to input the following values:
Press
draw the graph of the equation in the view window you defined.
Fostering Advanced Algebraic Thinking with Casio Technology
to return to the Main Menu, then
; s s cale:
to return to the equation screen, and press
(V-Window). The length of the
; X X max: ; s s cale:
.
It is important that
to access the Graph
.
Y Y min :
; Xmax:
(DRAW) to