Page 21 - PRAKTIS HEBAT ADDMATHS TG4

Additional Mathematics Form 4 Answers
(b) Graph for Table 2 because the graph obtained is (b) y
a straight line. x
Graf bagi Jadual 2 kerana graf yang diperoleh
merupakan satu garis lurus. 22
3. y 20

18
80
16
70
14
60
12
50
10
40
8
30
6
20
4
10
2
0 x
5 10 15 20 25 30
0 x
4. (a) 1 2 3 4 5 6
y
(c) (i) 2
(ii) 5
100 6. (a) log (x + 2) 0.48 0.60 0.70 0.78 0.85
10
90 log y -0.38 -0.67 -0.90 -1.08 -1.24
10
(b)
80
log y
10
70
0.8
60 0.73
0.6
50
0.4
40
0.2
30 log (x + 2)
10
0
20 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
–0.2
10
–0.4
0 x
5 10 15 20 25 30 –0.6
(b) y-intercept/ pintasan-y = 0,
gradient/ kecerunan = 3.6 –0.8
(c) y = 3.6x
(d) 80 –1.0
y
5. (a) — = px + pq –1.2
x

(c) m = 5.37, n = 2.32

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