Answers to even problems:

 Section 2.2

#2   4

#6   8/35

#8

 

#10

 

#22   

 

#24  4/9

 

#26 1/3

 

#28  0

#30  2

 

 

Section 2.3

6. x=1/2 is suspicious (it causes division by 0); it is also a point of discontinuity.

8. polynomials have no suspicious points and no points of discontinuities.

10. no suspicious points; no points of discontinuities.

12. t=1 and t=3 are suspicious points; t=3 is a point of discontinuity.

16. for continuity f(2) must equal the limit as x approaches 2, that is we must have f(2)=2.

20. the function cannot be continuous at x=2 because of the pole at this point.

34. a=0 and b=3

 

 

Section 2.4

48. 9

56. 11.55 years

58. First National

60. 5.7 %

66. a. P(40)=30.12 %

       b. 77.69%

        c. 7.81%

68. a. 263.34

       b. 1,232.72