Page 16 - PRAKTIS HEBAT MATHS TG 2

Matematik Tingkatan 2 Jawapan

C
11
1. (a) Garisan PQ mempunyai kecondongan yang lebih Prakt is PT 3 Transformasi Isometri
tinggi berbanding dengan garisan ST. Garisan PQ Isometric Transformations
lebih curam berbanding dengan garisan ST.
Kesimpulan: Semakin besar nilai sudut, semakin A
tinggi nilai kecerunan.
Line PQ has higher inclination than line ST. Line 1. A 2. B 3. A 4. C 5. C
PQ is steeper than line ST. 6. A 7. B 8. B 9. C 10. B
Conclusion: The greater the value of angle, the 11. D
higher the value of gradient.
(b) (i) 5 B
(ii) (25, 0)
(c) (i) 110 000 m 1. (a) (i) 4 (ii) 5
(ii) 80. Kecerunan graf jarak-masa ialah kadar (b)
perubahan jarak terhadap masa, iaitu kelajuan.
Maka, kecerunan garis OP menunjukkan kereta
tersebut bergerak pada kelajuan tetap 80 km/j.
80. The gradient of distance-time graph is the
rate of change of distance with respect to time. 3 3
Hence, the gradient of line OP shows the car is
moving at a constant speed of 80 km/h.
2. Transformasi Saiz Orientasi
2. (a) (i) 4 Transformation Size Orientation
(ii) 2.4
Pantulan Ya Tidak
(b) (i) 5 saat / 5 seconds Reflection Yes No
(ii) –3 m/s 2 Putaran Ya Ya
(c) Kecerunan AB = 1, Kecerunan AC = 1 Rotation Yes Yes
2
Nilai kecerunan garis AB lebih tinggi daripada
garis AC. Maka, garis AB lebih curam berbanding 3. (a)
dengan garis AC. P : Putaran 90° mengikut arah jam. 3
Gradient of AB = 1, Gradient of AC = 1 90° clockwise rotation.
2
The gradient of line AB is higher than line AC. Q: Pantulan. 3
Reflection.
Hence, line AB is steeper than line AC.
3. (a) (0, 2) (b) (i) ✗
(b) (i) 1 (ii) 3
(ii) 2.83 unit / units 4. (a), (b)
(c) Pintasan-x = –4 / x-intercept = –4
Pintasan-y = 9 / y-intercept = 9 B C
(d) –15
4. (a) (i) 0
(ii) –1 Q
(iii) (–10, 0) A D
(b) Kecerunan / Gradient = 2, O
Jarak MN = 6.708 unit P
Distance of MN = 6.708 units
(c) 36
F E
5. (a) pintasan-y / y-intercept = 10
1 5
m = 2.5 / 2 / C
2 2
(b) (2, 3) 1. (a) (i) Objek P bergerak 3 unit ke kiri dan 2 unit ke
(c) (i) Q(–12, 6) atas.
(ii) Kecerunan SQ = – 1 / Gradient of SQ = – 1 Object P moves 3 units to the left and 2 units
4 4 upwards.
–3
KBAT (ii)  
–8 2

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