Chapter 5 Polynomials and Polynomial Functions - Problem Solving Workshop - Another Way to Solve Example 6, Page 356 - Practice - Page 361: 10

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Given: $P(x)=0.0000984x^{4}-0.00712x^{3}+0.162x^{2}-1.11x+12.3$ The pineapple consumption is about $9.97$ pounds per person. Then, we have the new equation: $9.97=0.0000984x^{4}-0.00712x^{3}+0.162x^{2}-1.11x+12.3$ Separate the left side and the right side of the equation: $y=0.0000984x^{4}-0.00712x^{3}+0.162x^{2}-1.11x+12.3\\y=9.97$ The blue graph is the graph of $y=0.0000984x^{4}-0.00712x^{3}+0.162x^{2}-1.11x+12.3$. The red graph is the graph of $y=9.97$.