8. (6 points) A hyperbola has its vertices at (0,12) and (0.-12) and one focus at (0,15). Find the equation of the hyperbola. 10. (8 points) Let f (x) = x2. Apply the following transformation and write the resulting function. a. Shift horizontally 2 units left. b. Stretch vertically by a factor of 4. c. Reect with respect to the x-axis. d. Shift vertically 2 units down. 11. (8 points) In a triangle ABC, angle A = 13,a = 2.2, and b = 8. Find all possible measures of angle B