G9Math Q001

5.A relation from P to Q is
A. is two less than B. is two greater than C. is a factor of
D. is one half of E.is one less than

1. The figure the relation which represents
   A. x↦3x B.x↦12x C.x↦13x D.x↦x+3 E. x↦x-6

2. The diagram show the mapping
   A. x2x3+1 B.xx2+2 C. x2x+5 D. xx2+1 E. x2x2+1

3. Let A={2,3,4} and B={2,3,4,5} which of the following set does represent a function?
   A. {(2,2),(2,3),(2,5)} B.{(2,3),(3,4),(2,5)} C.{(2,5),(3,2),(4,3)}
   D. {(2,5),(3,3),(3,4)} E. {(3,2),(5,3),(5,4)}
   9.Let P={a,b,c} and B={p,q,r,s} . Which of the following set does not represent a function?
   A. {(a,b),(b,q),(c,r)} B.{(a,p),(b,q),(c,p)} C.{(a,s),(b,r),(c,p)}
   D. {(a,p),(a,q),(a,r)} E. {(a,s),(b,s),(c,s)}
   10.The set {(1,2),(2,3),(3,4)} represents the mapping
   A. x↦x B. x↦2x C. x↦x+1 D. x↦x2 E.x↦2x-1
   11.If (a,b) belongs to the of ordered pairs {(3,1),(5,3),(7,5),(9,7),……}, which of the following
   is true?
   A. a=3b B. a= b3 C. a-b=2 D. a=b2 E.3a = 2b

4. Let X={x,y,z} and Y={1,2,3,4}. Which one of the following sets of ordered pairs is a one to
   one function from X to Y?
   A. {(x,1),(y,1),(z,4)} B.{(x,3),(y,3),(z,3)} C. {(x,1)}
   D. {(y,1),(y,2),(y,3),(y,4)} E. {(x,4),(y,2),(z,3)}

5. If P= {2,3,4} maps onto Q={5,8,11} such that the mapping is one to one , then the mapping
   is given by
   A.x↦2x+1 B.x↦3x+2 C. x↦3x-1 D. x↦x2-1 E.x↦2x-1

6. Which of the following is not a function?
   A.x↦3x B. x↦x2 C.x↦x3 D. x↦x+2 E. x↦±x

7. Which of the following is (are) one to one function?
   1.x↦x2 2. x↦x3 3. x↦1
   A. 1 only B. 2 only C. 3 only D. 1and 2 only E. 2 and 3 only

8. A function is given by the set of ordered pairs {(1,4),(2,4),(3,6)}, then the domain is
   A. {1,2} B.{4,6} C.{1,2,3} D.{1,2,3,4,6} E. None of these

9. Let the domain of the function f:x↦0 be {1,3,5,7}. The rage of f is
   A.{0} B.{1} C.{3} D.{5} E. {7}
   18.Let A={1,2,3} and B={4,5,6} , let the function R={(1,4),(2,4),(3,4)}, then the range is
   A.{4,5,6} B.{5,6} C.{4} D.∅ E.{1,2,3}