College Algebra, 4th Edition

Building Skills

1. 9. g

2. 11. h

3. 13. d

4. 15. b

5. 17. Vertices: (1, 0) and $(-1,0);$ foci: $(\sqrt{5},0)$ and $1(-\sqrt{5},0);$ transverse axis: x-axis; the hyperbola opens left and right; vertices of the fundamental rectangle: $(1,2),(-1,2),(-1,-2),(1,-2);$ asymptotes: $y=\pm 2x$

   

6. 19. Vertices: (1, 1) and $(0,-1);$ foci: $(0,\sqrt{2})$ and $(0,-\sqrt{2});$ transverse axis: y-axis; the hyperbola opens up and down; vertices of the fundamental rectangle: $(1,1),(-1,1),(-1,-1),(1,-1);$ asymptotes: $y=\pm x$

   

7. 21. Vertices: (0, 2) and $(0,-2);$ foci: $(0,2\sqrt{10})$ and $(0,-2\sqrt{10});$ transverse axis: y-axis; ...