Note: on the midterm do not write out the word infinity - please use the correct symbolic notation.

1. a) {x | x < -5}
  b) (-infinity, -5]

2. a) [-3, -2]
  b) (-7, infinity)

3.

4.

5.

6.

7.

8. x = 7, -2

9. (-infinity, -2] U (1,2)

10. [-2,3]

11. a)
  (-9, -3)

12. x-intercept is (6,0) and y-intercept is (0,-1)

13. center (3,-5) and r = 3

14.