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AOS PROEFSTUDIE
NASIENRIGLYNE 2023
WISKUNDE VRAESTEL 1
GRAAD 9
AFDELING A
Een punt per antwoord.
Geen halfpunte word toegeken nie.
Nr. Verwagte antwoorde Verduideliking
1. B Irrasionaal
2. B 108 12 = 2 × 2 × 3
18 = 2 × 3 × 3
27 = 3 × 3 × 3
2 × 2 × 3 × 3 × 3 = 108
3. A 2 Tellers
3 8 = 23
12 = 22 × 3
GGF= 2 × 2 = 4
Noemers
30 = 2 × 3 × 5
36 = 22 × 32
GGF= 2 × 3 = 6
4 2
GGF = =
6 3
4. C
Graad 9 Wiskunde V1 Nasienriglyn 1
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Mathematics Grade 9 Paper 1 GEC Test 2023 Memo (Afrikaans)
Grade 9 Mathematics Paper 1 memorandum from the GEC Test 2023 (Afrikaans), 11 pages. Read online or download the free PDF.
Mathematics · Grade 9 · GEC Test · 2023 · Afrikaans. Memorandum, 11 pages. Read online or download the PDF.
- Subject
- Mathematics
- Grade
- Grade 9
- Language
- Afrikaans
- Document type
- Memorandum
- Year
- 2023
- Exam period
- GEC Test
- Paper
- 1
- Curriculum
- CAPS
- Pages
- 11
- File size
- 550.7 KB
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Nr. Verwagte antwoorde Verduideliking
5. A 103,13 km/h 𝑑
𝑠=
𝑡
𝑑
120 =
2,75
𝑑 = 120 × 2,75
𝑑 = 330 km
330
𝑠=
3,2
𝑠 = 103,13 km/h
6. D R1 339,42 𝐴 = 𝑃(1 + 𝑖)𝑛
12 2
𝐴 = 𝑅5 265 (1 + )
100
𝐴 = 𝑅5 265(1 + 0,12)2
𝐴 = 𝑅5 265(1,12)2
𝐴 = 𝑅5 265(1,2544)
𝐴 = 𝑅6 604,42
𝑆𝑅 = 𝑅6 604,42 − 𝑅5 265
𝑆𝑅 = 𝑅1 339,42
7. C −7 × (11 × 4)
8. B 8 3(4) − 2(2) = 12 − 4
=8
9. D 1
2 en −
2
10. C 14 2( − 3) − (5) − 4(6 ÷ 8)
5−6
3
−6 − 5 − 4 ( )
= 4
−1
−14
=
−1
= 14
11. A 1 3
√49 − 23 + √216 ÷ 3
=7−8+6÷3
=7−8+2
=1
12. C 1 3
+5 −4 + 5
5 √ √−64 =√
2
4 +3 2 16 + 9
1
=√
25
1
=
5
13. A 𝑎5 𝑐 3 2 5
𝑎 ×𝑎 𝑐 =𝑎 𝑐
Graad 9 Wiskunde V1 Nasienriglyn 2
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Nr. Verwagte antwoorde Verduideliking
14. C 2𝑥+2 4𝑥+1
2𝑥
(22 )𝑥+1
=
2𝑥
2𝑥+2
2
=
2𝑥
2𝑥+2−𝑥
= 2
= 2𝑥+2
15. B 𝑏+𝑎 𝑎−1 + 𝑏 −1
𝑎𝑏 1 1
= +
𝑎 𝑏
𝑏+𝑎
=
𝑎𝑏
16. B 1 (2 )3 × (23 )−2
2
= 26 × 2−6
= 20
=1
17. A 8𝑥 3 𝑥 −3 𝑦
−3
− ( )
𝑦3 −2𝑥 −2
3
−2𝑥 −2
= ( −3 )
𝑥 𝑦
3
−2𝑥 3
=( 2 )
𝑥 𝑦
2𝑥 3
= (− )
𝑦
8𝑥 3
= − 3
𝑦
18. D 7 3(𝑥 + 𝑦)0 (𝑥 −1 𝑦)3
+ 5𝑦 −1 − −3 4
𝑦 𝑦 𝑥 𝑦
−3 3
3×1 1 𝑥 𝑦
= + 5 × − −3 4
𝑦 𝑦 𝑥 𝑦
3 5 1
= + −
𝑦 𝑦 𝑦
7
=
𝑦
19. B 35 3 + 5 ; 8 + 7 ; 15 + 9 ; 24 + 11 = 35
OF
Volkome vierkante −1
22 − 1 = 3
32 − 1 = 8
42 − 1 = 15
20. C 83 3 + 6 + 10 + 15 + 21 + 28 = 83
Graad 9 Wiskunde V1 Nasienriglyn 3
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Nr. Verwagte antwoorde Verduideliking
21. A ʼn Konstante verhouding van
drie was gebruik.
22. C 𝑇𝑛 = −2𝑛 + 7 1; 3; 5; 7; … is nie opeenvolgende term
posisies nie
5; 𝑎; 1; 𝑏; −3; 𝑐; …
𝑎−5=1−𝑎
2𝑎 = 6
2𝑎 6
=
2 2
𝑎=3
5; 3; 1; … is opeenvolgende terme
3−5=1−3
𝑑 = −2
𝑇1 = −2(1) + ___ = 5
𝑇2 = −2(2) + ___ = 3
𝑇3 = −2(3) + ___ = 1
𝑇𝑛 = −2𝑛 + 7
23. A 3𝑥 3 en 3𝑥(𝑥 2 )
24. D −8 en 6de (−2𝑥 2 )3
= (−2)3 (𝑥 2 )3
= −8𝑥 6
Koёffisiёnt is −8 en die graad is 6de.
25. C 𝑥 + 3𝑥 2 + 2 − 4𝑥
26. A −4𝑥 3 − 2𝑥 2 + 𝑥 −𝑥(4𝑥 2 + 2𝑥 − 1)
= −4𝑥 3 − 2𝑥 2 + 𝑥
27. A 3𝑥 2 − 10𝑥 + 1 4𝑥 + 2
3𝑥(𝑥 − 4) +
2
4𝑥 2
= 3𝑥(𝑥 − 4) + 2 + 2
= 3𝑥 2 − 12𝑥 + 2𝑥 + 1
= 3𝑥 2 − 10𝑥 + 1
OF
2 × 3𝑥(𝑥 − 4) + 4𝑥 + 2
=
2
6𝑥 2 − 24𝑥 + 4𝑥 + 2
=
2
2
6𝑥 20𝑥 2
= − +
2 2 2
2
= 3𝑥 − 10𝑥 + 1
Graad 9 Wiskunde V1 Nasienriglyn 4
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Nr. Verwagte antwoorde Verduideliking
28. A 𝑥 3
√0,125𝑥 3
2
3 1
= √ 𝑥3
8
3 1
= √ 3 𝑥3
2
1
1 3
= ( 3 𝑥3)
2
1
1 3 1
= ( 3 ) (𝑥 3 )3
2
1
= 𝑥
2
𝑥
=
2
29. C 17𝑥 1
2𝑥 2 + −1 (𝑥 + 3)(2𝑥 − )
3 3
𝑥 3
= 2𝑥 2 − + 6𝑥 −
3 3
𝑥 + 18𝑥
= 2𝑥 2 − −1
3
17𝑥
= 2𝑥 2 + −1
3
30. D 16 1 2
−8 (− ) + 10(2) − 2
2
1
= −8 ( ) + 20 − 2
4
= −2 + 20 − 2
= 16
31. A (2𝑥 − 3)(2𝑥 + 3)
32. B (𝑥 − 8)(𝑥 + 3)
33. A 6(𝑦 − 3)(𝑦 + 1)
34. B 𝑥+2 2𝑥 2 − 2𝑥 − 12
2𝑥 − 6
2(𝑥 2 − 𝑥 − 6)
=
2(𝑥 − 3)
2(𝑥 + 2)(𝑥 − 3)
=
2(𝑥 − 3)
=𝑥+2
Graad 9 Wiskunde V1 Nasienriglyn 5
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Nr. Verwagte antwoorde Verduideliking
35. A 𝑥+𝑦+1 (𝑥 + 𝑦)2 − 1
𝑥+𝑦−1
(𝑥 + 𝑦 − 1)(𝑥 + 𝑦 + 1)
=
𝑥+𝑦−1
=𝑥+𝑦+1
36. A 2
37. B 2 2𝑝 4
=
2 2
𝑝=2
38. D 𝑥 = 0 of 𝑥 = 1
39. D 𝑏 = 3 of 𝑏 = −2
40. B 2𝑥 − 8 = 18
41. C 4 𝑦 = 16 − 12
𝑦=4
42. C −2 3𝑚 = 9−1
3𝑚 = (32 )−1
3𝑚 = 3−2
𝑚 = −2
43. D 𝑝 = 17 en 𝑡 = 6 𝑦 = 𝑥2 + 1
𝑝 = (−4)2 + 1
𝑝 = 16 + 1
𝑝 = 17
en
𝑦 = 𝑥2 + 1
37 = 𝑡 2 + 1
𝑡 2 = 36
𝑡 = ±6
∴𝑡=6
44. D 𝑥 = −6 of 𝑥 = 1 𝑥 2 + 3𝑥 + 2𝑥 − 6 = 0
𝑥 2 + 5𝑥 − 6 = 0
(𝑥 + 6)(𝑥 − 1) = 0
𝑥 = −6 of 𝑥 = 1
Graad 9 Wiskunde V1 Nasienriglyn 6
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Nr. Verwagte antwoorde Verduideliking
45. B 𝑎 = 0 of 𝑎 = 4 1 1
( 𝑎 − 1) ( 𝑎 − 1) = 1
2 2
1 2
𝑎 −𝑎+1=1
4
1 2
𝑎 −𝑎 =0
4
𝑎2 − 4𝑎 = 0
𝑎(𝑎 − 4) = 0
𝑎 = 0 of 𝑎 − 4 = 0
𝑎 = 0 of 𝑎=4
OF
1
𝑎 − 1 = ±1
2
1 1
2
𝑎 − 1 = 1 of 2 𝑎 − 1 = −1
1 1
2
𝑎 = 2 of 2 𝑎 = 0
𝑎 = 4 of 𝑎 = 0
46. B 2m 𝐴 = (𝑥 − 18)(𝑥)
40 = 𝑥 2 − 18𝑥
0 = 𝑥 2 − 18𝑥 − 40
0 = (𝑥 − 20)(𝑥 + 2)
𝑥 = 20 of 𝑥 = −2
∴ 𝑥 = 20
breedte = 20 − 18
breedte = 2 m
47. A 𝑏 = 33 𝑦 = 4𝑥 − 3
𝑏 = 4(9) − 3
𝑏 = 33
48. C
𝒙 −2 0 2
𝒚 −8 −2 4
49. B 𝑚 = (𝑛 + 1)2 𝑚 = (Ewe + 1)2
𝑚 = (Onewe)2
𝑚 = Onewe
50. D 1 1
𝑦 =− 𝑥+1 𝑚=−
2 2
𝑦-afsnit by (0; 1) en 𝑐 = 1
1
𝑦 =− 𝑥+1
2
51. D 𝑉 = 4𝑡 + 6 Gemene verskil = 4
𝑉 = 4𝑡 + 𝑐
Deur inspeksie: 𝑉 = 4𝑡 + 6
Graad 9 Wiskunde V1 Nasienriglyn 7
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Nr. Verwagte antwoorde Verduideliking
52. A 𝑐 = 40𝑡 + 500
𝑦-afsnit =R500 en die gradiёnt =40
53. B (0; −5)
54. D 1 𝑦 = 2𝑥 − 2
2𝑥 − 2 = 0
2𝑥 = 2
𝑥=1
55. C 3
−
4
56. B
𝒙 −4 −2 2
𝒚 −1 −2 −4
57. C Konstante verskil van 8
𝒙 1 2 3 4
𝒚 12 20 28 36
58. D −2𝑥 + 𝑦 − 2 = 0 −2𝑥 + 𝑦 − 2 = 0
𝑦 = 2𝑥 + 2
59. B (−1; −3) 𝑦 = 2𝑥 − 1
−3 = 2(−1) − 1
−3 = −3
60. A 𝑦 = −3𝑥 + 5 𝑚𝐴𝐵 = 𝑚𝐶𝐷 …Ewewydige lyne
𝑦 = −3𝑥 + 𝑐
∴ 2 = −3(1) + 𝑐
𝑐=5
Afdeling A totaal 60
Graad 9 Wiskunde V1 Nasienriglyn 8
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AFDELING B
Moet nie die leerder vir dieselfde fout twee keer penaliseer nie.
Geen halfpunte word toegeken nie.
NASIENKODES
M Metodepunt
A Akkuraatheidspunt
KA Konsekwente/ deurlopende akkuraatheidspunt
Punt
Nr. Verwagte antwoord Verduideliking
61. 𝑦 = 3𝑥 − 5 𝐌 Algemene term: 1 punt 3
Substitisie: 1 punt
46 = 3𝑞 − 5 𝐌
Antwoord: 1 punt
51
𝑞=
3 Aanvaar 𝑥 = 17
Antwoord alleenlik volpunte
𝑞 = 17 KA
62. −5𝑦 3 (6𝑦 − 1) − 3𝑦 2 (5 − 10𝑦 2 ) Vereenvoudiging:1 punt 3
5𝑦 2 (𝑦−3)
5𝑦 2 :1 punt
5𝑦 2
−30𝑦 4 + 5𝑦 3 − 15𝑦 2 +30𝑦 4 Antwoord:1 punt
= 𝐌
5𝑦 2
5𝑦 3 − 15𝑦 2
=
5𝑦 2
5𝑦 2 (𝑦 − 3)
= 𝐌
5𝑦 2
= 𝑦 − 3KA
OF
𝑦 2 (6𝑦 − 1) 3𝑦 2 (5 − 10𝑦 2 )
− Vereenvoudiging:1 punt
−𝑦 5𝑦 2 −6𝑦 2 + 𝑦 − 3 + 6𝑦 2 :1 punt
6𝑦 3 − 𝑦 2 15𝑦 2 − 30𝑦 4 Anwoord:1 punt
= − 𝐌
−𝑦 5𝑦 2
6𝑦 3 𝑦 2 15𝑦 2 30𝑦 4
= − − +
−𝑦 −𝑦 5𝑦 2 5𝑦 2
= −6𝑦 2 + 𝑦 − 3 + 6𝑦 2 M
= 𝑦 − 3 KA
Graad 9 Wiskunde V1 Nasienriglyn 9
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Punt
Nr. Verwagte antwoord Verduideliking
63. Laat 𝑥 die massa van die voertuig Vergelyking: 1 punt 4
Vereenvoudiging: 1 punt
voorstel.
𝑥 = 1275 kg: 1 punt
𝑥 Antwoord: 1 punt
900 + 120 + = 𝑥 𝐌
5
4500 + 600 + 𝑥 = 5𝑥 𝐌
4𝑥 = 5100
𝑥 = 1275 kg KA
𝑥
∴ Enjinmassa = 5
=255 kg KA
OR
Laat 𝑥 die massa van die voertuig Vergelyking: 1 punt
voorstel Vereenvoudiging: 1 punt
𝑥 = 1275 kg: 1 punt
𝑥
900 + 120 + = 𝑥 𝐌 Antwoord: 1 punt
5
4
900 + 120 = 𝑥 𝐌
5
4𝑥 = 5100
𝑥 = 1275 kg KA
𝑥
∴ Die voertuig se enjin =
5
= 255 kg KA
64.
Graad 9 Wiskunde V1 Nasienriglyn 10
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Punt
Nr. Verwagte antwoord Verduideliking
64.1 Op die grafiek A Korrekte stip van enige 2 punte:1 punt (3)
Korrekte 𝑦-afsnit:1 punt
Vorm van die grafiek:1 punt
64.2 Op die grafiek A Korrekte teken van die grafiek: 1 punt (1)
64.3 Afstand tussen 𝑥-afsnit = 6 Antwoord: 1 punt (1)
eenhede KA
Afdeling B totaal 15
Graad 9 Wiskunde V1 Nasienriglyn 11
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