1. Identify which of the following are counting numbers, whole numbers, integers, rational numbers and irrational.  (Give all correct answers.  If a number is in more than one category, list all.)
    1. 2.345
    2. (square root of 3)
    3. –13
    4. –2/5
    5. 0
    6.  (square root of 169)
    7. 128
    8. 423
    9.  (pi)
    10. 132/6
  2. Simplify
    1. a5/a3
    2. (x2+x3)*x
    3. (q2/p)3
    4. (xy3z2)2/(x3y3z)
    5. (a2b+ab2)/(ab)
  3. Express in scientific notation
    1. 1200000
    2. –0.00034
    3. 56
    4. 0.0000000073
    5. 2.8
  4. Put in standard decimal form
    1. 3.5*107
    2. –9.8*10-1
    3. 6.7*10-8
    4. –4.5*1012
    5. 2.3*101

 

 

 

 

 


5.         Which of the following are functions?

a)

 

 

 

b)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

c)

 

 

 

d)