Prime DSE Series - Mathematics Mock Exam Papers (Extended Part) Module 1 Set 3

HKDSE-MATH-EP(M1)(Set 3) − 7 7 © United Prime Educational Publishing (HK) Ltd. Please stick the barcode label here Answers written in the margins will not be marked. Answers written in the margins will not be marked. Answers written in the margins will not be marked. Go on to the next page 6. Let 3 4 ( 2) y a bx y e e + + = , where a and b are constants. (a) Express ln( y 3 + 2) + 4 y as a linear function of x . (b) It is given that the slope and the intercept on the vertical axis of the graph of the linear function obtained in (a) are 3 and 1 respectively. (I) Write down the values of a and b . (ii) If 8 16 1 1 x x e z e − − − = + , find the value of d d z y when y = 0. (6 marks) Sample © United Prime Educational Publishing (HK) Limited All rights reserved; no part of this publication may be reproduced, photocopied, recorded or otherwise, without the prior written permission of the Publisher.