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PROCEDURE
1. Press Y to enter the Graph Equation window. Six equation
2. By default, the cursor should be placed on the right side of the
3. Enter the first equation, "2
4. When the equation line is complete, press E. The first
5. At the second line, press
6. Press G to draw the graphs.
entry areas appear, from "Y1=" to "Y6=". Since we need only
two equations in this exercise, let's use "Y1=" and "Y2=".
"Y1=" equation, next to the equal sign. If this is not so, use the
cursor keys to bring the cursor to the "Y1=" line, then press the
C key to clear any entries. The cursor will automatically be
placed to the right of the equal sign.
Cab's fare system.
2 + 1 . 8 X
Use the X key to enter the "x", representing the distance in
miles.
equation is now stored, and the cursor automatically jumps to
the second line, where the second equation can be entered.
C to clear any entries,
+
then enter "3.5
1.2X" to
represent the Orange Cab's
fare system. When done
entering the equation, press
E. The two equations are now ready to graph.
To draw a graph, "=" must be highlighted. If not, move the cursor
to "=" of the targeted equation and press E to draw a graph,
and press E again not to draw a graph.
Graph Basics
The graph examples in this exercise are called X-Y graphs. An
X-Y graph is quite useful for clearly displaying the relationship
between two variables.
Chapter 4: Graphing Features
+
1.8X", to represent the Tomato
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