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Question
For the curve y = x3 given in Figure 1.67, draw
y = −x3 
Solution
y = – x3
| x | 0 | 1 | – 1 | 2 | – 2 |
| y | 0 | – 1 | 1 | – 8 | 8 |
The graph y = – x3 is the reflection of the graph y = x3 about x-axis.
The graph of y = – f(x) is the reflection of the graph of y = f(x) about x-axis.
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