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Step & Key Operation | Display | Notes |
Change to parametric mode. |
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| 2nd F |
| SET UP |
| E |
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Rewrite x = y 2 |
| Let y = T and substitute in x | |||||||||||
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| Enter X1T = T 2 |
| = y 2 - 2, to obtain x = T 2- 2. | ||||||||||
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| x2 |
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| Y= |
| X/ /T/n |
| — | ENTER |
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| X/ /T/n |
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(To understand this, use Trace fea- ture.)
GRAPH | ( | TRACE |
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WINDOW 6
ENTER
The graph starts at T =0 and increases. Since the window setting is T ≥ 0, the region T < 0 is not drawn in the graph.
GRAPH
The calculator provides two methods for graphing parabolas, both of which are easy to perform.