Speed And Distance - Casio fx-7400G PLUS Booklet

E-1 Speed and Distance
Exercise
Two Cars Traveling at Different Speeds
Two cars, one in Tokyo and one in the Ayuzawa Parking
Area (72 kilometers from Tokyo) set off for Nagoya at the
same time. Both cars run at constant speeds without
stopping, the Tokyo car at 90 km/h and the Ayuzawa car
at 60 km/h. Draw a graph that shows at what point the
Tokyo car will overtake the Ayuzawa car.
1. Input the formula.
From the Main Menu, enter the GRAPH Mode.
Make sure that Y1: is highlighted and then input the following.
Tw
90
Move the highlighting to Y2: and then input the following.
T+
60
2. Use the View Window to configure graph settings.
Specify the ranges of the X-axis and Y-axis, and their scales.
Input the X-axis range and scale values shown to the right.
!3
Next, input the Y-axis range and scale values shown to the right.
c w
0
3. Display the graph.
4
Press (DRAW) to draw the graphs.
4. Observe the point where the lines intersect.
!1
• Pressing
that point. Use
d
• Pressing
values of X = 0, Y = 72. Using the cursor this way is called "tracing."
w
72
w w
0 5
(V-WIN)
w ww
400 100
(TRCE) displays a pointer on the graph, along with the X and Y values at
f c
and to select the graph
to move the cursor the point where the graph intersects the Y-axis produces
JIKKYO SHUPPAN CO., LTD.: SHIN KOGYO SURI
w
1
Y2 = 60X + 72
– 1 –
(NEW EDITION)
Ayuzawa (72)
Fuji
Nagoya
(121.5)
(325.5)
Shizuoka
Okazaki
(161.8)
(293.4)
Hamamatsu
(230)
Tokyo (0)
Atsugi
(35)
Gotenba
(83.7)