Basic Technical Mathematics, 11th Edition

Exercises 21.8, page 604

1. 1. Hyperbola

2. 3. Ellipse

3. 5. Hyperbola

4. 7. Circle

5. 9. Parabola

6. 11. Hyperbola

7. 13. Circle

8. 15. None (straight line)

9. 17. Hyperbola

10. 19. Hyperbola

11. 21. None (point at origin)

12. 23. Hyperbola

13. 25. Parabola: $V(\hspace{0.17em}-\hspace{0.17em}4\hspace{0.17em},\hspace{0.17em}0)\hspace{0.17em}:\hspace{0.17em}F(\hspace{0.17em}-\hspace{0.17em}4\hspace{0.17em},\hspace{0.17em}2)$

    

14. 27. Hyperbola: $C(1\hspace{0.17em},\hspace{0.17em}\hspace{0.17em}-\hspace{0.17em}2)\hspace{0.17em};\hspace{0.17em}V(1\hspace{0.17em},\hspace{0.17em}\hspace{0.17em}-\hspace{0.17em}2\hspace{0.17em}\pm \hspace{0.17em}\sqrt{2})$

    

15. 29. Ellipses; $C(5\hspace{0.17em},\hspace{0.17em}0)\hspace{0.17em};\hspace{0.17em}V(5\hspace{0.17em},\hspace{0.17em}\hspace{0.17em}\pm \hspace{0.17em}2\sqrt{2})$

    

16. 31. Ellipse

17. 33. Parabola

18. 35. Hyperbola

    Enter both functions (from quadratic formula).

19. 37.