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Graphing Chapter 4
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uTo graph parametric functions
You can graph parametric functions that can be expressed in the following format.
(X, Y) = (
f (T), g(T))
Example To graph the following parametric functions:
x = 7 cos T – 2 cos 3T
y = 7 sin T – 2 sin 3T
Use the following View Window parameters.
Xmin = –20 Ymin = –12
Xmax = 20 Ymax = 12
Xscl = 5 Yscl = 5
Tmin = 0 Tmax = 2"
Tptch = "÷36
1. In the set-up screen, specify the appropriate graph type for F-Type.
!Z2(Parm)
2. Set the default angle unit to radians (Rad).
cc2(Rad)Q
3. Input the parametric functions.
A!4(SKTCH)1(Cls)w
2(GRPH)2(Parm)
hcT-ccdT,
hsT-csdT)
4. Press w to draw the graph.
w
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uTo graph inequalities
You can graph inequalities that can be expressed in the following four formats.
• y > f
(x)
•
y < f
(x)
• y > f
(x)
• y < f
(x)
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