HINT: Click the circles to the left of lines 3, 6, and 8 to show/hide the graphs.
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a. Consider the inequality on line 6. Does the point (0, 0) make this inequality true? What is the graph? Explain.
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b. Now consider the inequality on line 8. Does the point (0, 0) make this inequality true? What region is shaded? Describe the graph of this inequality.
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Esempi