1.
(I) (II) (III)
A. (I) only
B. (II) only
C. (III) only
D. (I) and (II)
E. (II) and (III)
2. Which of the following is a rational number?
A.
B. p
C. log 2
D.
E. 3.141 59
3. If x and y are two even natural numbers, which of the following must be divisible by 4?
(I) xy (II) x + y (III)
E. (I) and (III)
4. If p is a positive integer, which of the following must be an integer?
B.
C.
E.
5. If a, b and c are three consecutive positive integers, which of the following must be even?
A. a + b + c
B. ab + bc + ca
C. abc
6. Which of the following is/are function(s) of x?
D. (I) and (III)
7. Which of the following graphs do/does not represent function(s) of x?