Apps. and Interpretation for IBDP Maths Ebook 1 | Page 375

Answers
Exercise 35
Chapter 12
35.1 (a) x � 5
(b) (i) (7, 4)
(ii) k � 1
(iii) (5, 3)
35.2 (a) (i) (6, 6)
(ii) y�
x
(b) (i) x � 5
(ii) (5, 5)
(iii) 3.16
35.3 (a) (i) (5, 5)
(ii) k � 10
(b) (1, 9)
(c) Every position in the Voronoi
cell of B has B to be the
nearest supermarket
35.4 (a) (i) x � 5
(ii) y � 5
(b) (i) (6, 6)
Exercise 36
(ii) k � 7
(iii) 2
36.1 (a) (i) 3.125 km
(ii) 3 km
(iii) E
(b) 13 km
36.2 (a) (i) 2.02 km
(ii) 1.80 km
(iii) The hotel at E
(b) 1.34 km
36.3 (a) (i) 3.61 km
(ii) 3.80 km
(iii) Q
(b) The farm at B
36.4 (a) 4.40 km
(b) 4 km
(c) 17.6%
Exercise 37
37.1 (a) p � 4
(b) q � 2
(c) r �� 2
37.2 (a) p � 16
(b)
1
q �
4
(c) r � 44
37.3 (a) p � 2�
(b) q � 6
(c) r � 15
37.4 (a) p � 10
(b)
1
q �
3
(c) r �� 1080
Exercise 38
38.1 (a) (i) 3.5
(ii) 2
(b) Refer to solution
38.2 (a) (i) 3
(ii) 2
(b) Refer to solution
38.3 (a) (i) 4
(ii) 360
(b) Refer to solution
38.4 (a) (i) 3
(b)
Exercise 39
39.1 (a) 180
(b) � 2
(ii) 720
Refer to solution
(c) x � 45 or x � 225
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