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12-9.
  1. On graph paper, graph x2 + y2 = 9. 12-9 HW eTool (Desmos). Homework Help ✎

    1. Consider the inequality x2 + y2 < 9. Does the point (0, 0) make this inequality true? What is the graph of x2 + y2 < 9 ? Explain.

    2. Now consider the inequality x2 + y2 > 9. Does the point (0, 0) make this inequality true? What region is shaded? Describe the graph of this inequality.

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