Solutions
Solutions to Try Its
1. The path passes through the origin and has vertex at , so . To make the shot, would need to be about 4 but ; he doesn’t make it. 2. in general form; in standard form 3. The domain is all real numbers. The range is , or . 4. y-intercept at (0, 13), No x-intercepts 5. a. 3 seconds b. 256 feet c. 7 secondsSolutions to Odd-Numbered Exercises
1. When written in that form, the vertex can be easily identified. 3. If then the function becomes a linear function. 5. If possible, we can use factoring. Otherwise, we can use the quadratic formula. 7. , Vertex 9. , Vertex 11. , Vertex 13. , Vertex 15. Minimum is and occurs at . Axis of symmetry is . 17. Minimum is and occurs at . Axis of symmetry is . 19. Minimum is and occurs at –3. Axis of symmetry is . 21. Domain is . Range is . 23. Domain is . Range is . 25. Domain is . Range is . 27. 29. 31. 33. 35. 37. 39. 41. 43. 45. 47. 49. 51. 53. Vertex , Axis of symmetry is . Intercepts are .
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