My Possible Answers - Additional Mathematics Paper 1 SPM2014

1.(a) {(-2,4),(1,1),(2,4)} *1mark    
    (b) {-2, 1, 2} *1mark

2. m =-2 *2marks

3. a < 4/5 *2marks

4.(a) (3, -25) *1mark
   (b) x = 3 *1mark
   (c) -2 < x < 8 *1mark

5.(a) m = -3/2 *2marks
   (b) m = 8 *2marks

6. 4x^3y^5 *2marks

7.(a) 3 *1mark
   (b) - 1/2 *2marks

8.(a) 5 *1mark
   (b) 3 *2marks

9.(a) AP *1mark
   (b) 42º *1mark
   (c) 360º *1mark

10. Syarikat Perdana
       and RM91,157.58  *4marks

11. (a) 4-2x^2 *1mark
      (b) -2 *1mark
      (c) (0, 4) *1mark

12.(a) 7 *1mark
      (b) (9, 8) *2marks

13. K = -5 *2marks

14. 90º 210º 270º 330º  *4marks

15.(a) -4a *1mark
      (b) 8a - 7b *2marks

16.(a) 5 *1mark
      (b) -3 *2marks

17. length = 28 *4marks

18.(a) 2t  *1mark
      (b) 7(x -3) *3mark

19.(a) -8 *2mark
      (b) 6 *2marks

20. 13.89 *4marks

21.(a) x=3 *2marks
      (b) 7 *2marks

22.(a) 30 *1mark
      (b) 10.57 *2marks

23.(a) 7C5 = 21 *1mark
      (b) 9C4 x 7C1 + 9C5 x 7C0 = 1008  *3marks

24.(a) 4/5 *1mark
      (b) 13/20 *2marks

25.(a)(i) 0 *1mark
          (ii) 1 *1mark
      (b) 0.3413 *2marks

 Total marks = 80