Practice Math 102 Common Final Exam

 

1.       (4)  For  and , find .  Express your answer in interval notation.  

      

 

2.      (4)  Simplify completely.  Express your answer without negative exponents.

                                        [those teensy fractional exponents are –4/5 and –1/4 ]

 

 

3.      (4)  Factor completely.

                                 [those teensy fractional exponents are 3/2, 1/2,  and  –1/2 ]

 

 

4.    (5)  Divide.                          Express your answer in the form .

 

5.       (5)  Solve.  Express your answer in interval notation.

     

 

6.      (4)  Solve.  Express your answer using interval notation.

           

 

 

7.      Let A = (2,–5) and B =  (–1,3) be points in the xy-plane.

a)  (4)  Find the length of segment AB.  (simplify the answer)

b)  (2)  Find the midpoint of segment AB.

 

8.      (4)  Find the center and radius of the circle with equation:    .

 

 

9.   (4)  The manager of a cheap plastic furniture factory finds that it costs $2400 to produce 200 chairs in a day, and $6200 to produce 400 chairs in a day.  Assuming that the relationship between cost (y) and the number of chairs produced (x) is linear, find an equation that relates x and y.

 

10. (5)  For  +3, find .  (Simplify your answer completely.)

 

 

11. a)  (2)  Sketch the graph of

 

b)   (3)  Use transformations to sketch the graph of

 

 

 

12. (4)  For , find the formula for .

 

 

13.  (5)  Sketch the graph of .  Label all intercepts;  describe end behavior.

 

 

14.   For ,

  a)   (2)  List all the theoretically possible rational zeros of  P(x)..

  b)   (2)  Use synthetic division to show that  is a zero of P(x).

c)      (3)  Find all the zeros of P(x).  Simplify your answers.

 

 

15.  (5)  Find a fourth degree polynomial  witha zero, 1 a zero of multiplicity 2, and a constant term of 10.

            Express your answer in the form  ( are integers).

 

16.

 

a)               (2)  Find the x and y intercepts.  (express as ordered pairs)

 

b)       (1)  Find the vertical asymptote.  (write the equation)

                                  

c)           (1)  Find the horizontal asymptote.  (write the equation)

 

d)       (3)  Sketch the graph.

 

 

17.    (4)  Sketch the graph of (Label one point on the graph and the asymptote.)

 

 

18.   (5)  Simplify completely: 

 

 

19.   (4)  Solve for x:  (Give an exact answer.)

 

 

20.  (5)  Solve for x: 

 

 

21.                  (4)  $2000 is invested in an account that pays 3% (annual percentage rate) compounded continuously.  How long will it take for the balance to reach $3000?