The population, x, of a certain micro- organism, present at 1 hours after initially being - -
observed, is given by the formulaxz 200 + 2008.
(i) Calculate the initial population. V
(ii) Calculate the time taken for the population to reach 1000. Give your

4313+!
,zwherex at 3. :
x + 3
' A curve has the equation y =
(i) Find ny. . [2]
i (ii) 1 Hence, stating your reasons clearly, deterrrne if the graph of
2x+l
y = is decreasing or increasing for which x > 0 , x #5 ~3. [2]
x+3
7xx2
3
Find the range of va

Name%(%)% %
%
%Class%4%
ANGLICAN HIGH SCHOOL
PRELIMINARY THREE EXAMINATION
SECONDARY FOUR
ADDITIONAL MATHEMATICS 4038
PAPER 2
%
%
11%Sept%2012%(Tuesday)% %
%
%
%
2
Additional Materials: 8 Writing Papers
1
hours%
2
READ THESE INSTRUCTIONS FIRST
Write your

ANDERSON SECONDARY SCHOOL
2012 Preliminary Examination
Secondary Four Express / Five Normal
CANDIDATE
NAME
CENTRE
NUMBER
INDEX
NUMBER
S
ADDITIONAL MATHEMATICS
Paper 1
4038/01
27 August 2012
2 hours
Candidates answer on writing papers.
Additional materials

!
Name%(%)% %
%
%Class%4%
ANGLICAN HIGH SCHOOL
PRELIMINARY EXAMINATIONS THREE
SECONDARY FOUR
ADDITIONAL MATHEMATICS 4038
PAPER 1
12 Sept 2012 (Wed)
2 hours
Additional Materials: 7 Writing Papers and 1 Graph Paper
READ THESE INSTRUCTIONS FIRST
Write your n

Class:
Register No:
Name:
CRESCENT GIRLS SCHOOL
SECONDARY FOUR
PRELIMINARY EXAMINATION
ADDITIONAL MATHEMATICS
Paper 2
4038/02
17 Aug 2012
Additional materials: Writing Paper
2 hours 30 minutes
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Write your name, register nu

TANJONG KATONG GIRLS SCHOOL
PRELIMINARY EXAMINATION 2012
SECONDARY FOUR
4038/1
Tuesday
ADDITIONAL MATHEMATICS
Paper 1
28 August 2012
2hr
Additional Materials: Answer Paper
Graph Paper (1 Sheet)
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YISHUN SECONDARY SCHOOL
We Seek, We Strive, We Soar
PRELIMINARY EXAMINATION 1
Name : _ Reg. No : _ Class: _
Sec 4 Express/ 5 Normal
Date: 10th MAY 2012
ADDITIONAL MATHEMATICS (4038/1)
PAPER 1
Duration : 2 hours
MAX MARKS: 80
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YISHUN SECONDARY SCHOOL
We Seek, We Strive, We Soar
PRELIMINARY EXAMINATION 1
Name : _ Reg. No : _ Class: _
Sec 4 Express/ 5 Normal
Date: 11 MAY 2012
ADDITIONAL MATHEMATICS (4038/2)
PAPER 2
Duration : 2 hours 30 minutes
MAX MARKS: 100
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Class
Index Number Name
ANG MO KIO SECONDARY SCHOOL
PRELIMINARY 2 EXAMINATION 2012
SECONDARY FOUR EXPRESS/FIVE NORMAL ACADEMIC
ADDITIONAL MATHEMATICS
4038/02
Wednesday 27 June 2012 2 hours 30 minutes
Additional materials:

TANJONG KATONG GIRLS SCHOOL
PRELIMINARY EXAMINATION 2012
SECONDARY FOUR
4038/2
Monday
ADDITIONAL MATHEMATICS
Paper 2
10 September 2012
2hr 30min
Additional Materials: Answer Paper
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