(II) 
(III) 
1. Which of the following is/are irrational number(s)?
(I)
(II)
(III)
A. (I) only B. (II) only C. (III) only D. (I) and (III) E. (II) and (III)
2. Which of the following is a rational number?
3. Which of the following is rational?
4. If a and b are two consecutive positive integers, which of the following must be even?
5. If a is even and b is odd, which of the following must be an integer?
6. Simplify 
.
7. Simplify 
.
8. Simplify 
.
9. Simplify 
.
10. Rationalize 
.
11. Simplify 
.
12. Which of the following is/are function(s) of x?
(I) 
(II) 
(III) 
A. (I) and (II) B. (I) and (III) C. (II) and (III)
D. (I), (II) and (III) E. None of the above
13. Which of the following is/are function(s) of x?
A. w only B. y only C. z only D. w and y E. w and z
14. Which of the following graphs do/does not represent function(s) of x?
(I) (II) (III)
A. (I) only B. (II) only C. (III) only D. (I) and (II) E. (II) and (III)
15. If 
, find the value of 
.
16. If 
, find the value of 
.
17. If f (x) = x -
3, find the value of 
.
A. - 8 B. - 7 C. - 2 D. 2 E. 8
18. If 
and f (3) = 2 f (5), find the value of a.
