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EM-2018-AHS-SA2-P1 Name ____________ _______________________ ( ) Class 4 _______ MATHEMATICS 4048/01 Paper 1 Monday 10 September 2018 2 hours Candidates answer on the Question Paper. READ THESE INSTRUCTIONS FIRST Write your name and index numbe r on all the work you hand in. Write in dark blue or black pen on both sides of the paper. You may use an HB pencil fo r any diagrams or graphs. Do not use staples, paper clips, glue or correction fluid. Answer all questions. If working is needed for any questi on it must be shown with the answer. Omission of essential working will result in loss of marks. The use of an approved scientific calculator is expected, where appropriate. If the degree of accuracy is not s pecified in the question, and if the answer is not exa ct, give the answer to three significant figures. Gi ve answers in degrees to one d ecimal place. For  , use either your calculator value or 3.142, unless the questio n requires the answer in terms of  . At the end of the examination, fa sten all your work securely to gether. The number of marks is given in brackets [ ] at the end of eac h question or part question. The total of the marks for this paper is 80 . This question paper consis ts of 17 printed pages. Table of Penalties Qn. No. Presentation – 1 Units –1 Significant Figures –1 Parent’s/ Guardian’s Name/ Signature/ Date Question 1 2 3 4 5 6 7 8 9 10 Marks Question 11 12 13 14 15 16 17 18 19 20 Marks For Examiner’s Use S4 ANGLICAN HIGH SCHOOL PRELIMINARY EXAMINATION 2018 SECONDARY FOUR 80 [Turn over

EM-2018-AHS-SA2-P1 Mathematical Formulae Compound Interest Total amount = n r P        100 1 Mensuration Curved surface area of a cone = rl  Surface area of a sphere = 2 4 r  Volume of a cone = h r 2 3 1  Volume of a sphere = 3 3 4 r  Area of triangle ABC = ab 2 1 C sin Arc length =  r , where  is in radians Sector area =  2 2 1 r , where  is in radians Trigonometry C c B b A a sin sin sin   bc c b a 2 2 2 2    A cos Statistics Mean = f fx   Standard deviation = 2 2              f fx f fx

EM-2018-AHS-SA2-P1 Answer all the questions. 1 One solution of 221 2 0xk x is 4x . Find (a) the value of k, Answer k = ……….….………….. [1] (b) the other solution of the equation. Answer ….………….…………… [1] 2 Adapted from https://www.youtube.com/watch?v=ETbc8GIhfHo. State one aspect of the above graph that may be misleading and explain how this may lead to a m i s i n t e r p r e t a t i o n o f t h e g r a p h . Answer ………………………………………………………………………………………… ………………………………………………………………………………………… …………………………………………………………………………………….. [2] Average Ticket Prices (