Page 12 - Matematik Tg3_Praktis Topikal A+_Pan Asia Publications

1
y
(b) Diberi − 2x = .
2
6 5
y
1
Given that − 2x = .
2
6 5
(i) Ungkapkan y dalam sebutan x.
Express y in terms of x.
[1 markah/1 mark]
Jawapan/Answer :
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y = 5 ×  1 – 2x 2 
6
5
y = – 10x 2
6
(ii) Cari nilai y apabila x = −2.
Find the value of y when x = −2.
[2 markah/2 marks]
Jawapan/Answer :
5
y = – 10x 2
6
5
= – 10(–2) 2
6
5
= – 40
6
= – 235
6
(c) Bina sebuah heksagon sekata ABCDEF dengan panjang sisi 4 cm.
Construct a regular hexagon ABCDEF with length of sides 4 cm.
[3 markah/3 marks]
B

A
C

F
D

E

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