1. [latex]\frac{128}{3}\\[/latex]
2. [latex]\frac{9}{2}\\[/latex]
3. x = 20
Solutions to Odd-Numbered Exercises
1. The graph will have the appearance of a power function.
3. No. Multiple variables may jointly vary.
5. [latex]y=5{x}^{2}\\[/latex]
7. [latex]y=10{x}^{3}\\[/latex]
9. [latex]y=6{x}^{4}\\[/latex]
11. [latex]y=\frac{18}{{x}^{2}}\\[/latex]
13. [latex]y=\frac{81}{{x}^{4}}\\[/latex]
15. [latex]y=\frac{20}{\sqrt[3]{x}}\\[/latex]
17. [latex]y=10xzw\\[/latex]
19. [latex]y=10x\sqrt{z}\\[/latex]
21. [latex]y=4\frac{xz}{w}\\[/latex]
23. [latex]y=40\frac{xz}{\sqrt{w}{t}^{2}}\\[/latex]
25. [latex]y=256\\[/latex]
27. [latex]y=6\\[/latex]
29. [latex]y=6\\[/latex]
31. [latex]y=27\\[/latex]
33. [latex]y=3\\[/latex]
35. [latex]y=18\\[/latex]
37. [latex]y=90\\[/latex]
39. [latex]y=\frac{81}{2}\\[/latex]
41. [latex]y=\frac{3}{4}{x}^{2}\\[/latex]
43. [latex]y=\frac{1}{3}\sqrt{x}\\[/latex]
45. [latex]y=\frac{4}{{x}^{2}}\\[/latex]
47. 1.89 years
49. 0.61 years
51. 3 seconds
53. 48 inches
55. 49.75 pounds
57. 33.33 amperes
59. 2.88 inches
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Precalculus.Provided by: OpenStaxAuthored by: Jay Abramson, et al..Located at: https://openstax.org/books/precalculus/pages/1-introduction-to-functions.License: CC BY: Attribution. License terms: Download For Free at : http://cnx.org/contents/fd53eae1-fa23-47c7-bb1b-972349835c3c@5.175..