Related links:
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O-LEVEL E. MATH TOPICAL CRASH COURSE
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O-LEVEL A. MATH TOPICAL CRASH COURSE
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O-LEVEL PHYSICS TOPICAL CRASH COURSE
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1(a) x < 1/2
1(b)(i) W = 126
1(b)(ii) u = +- Sqrt(v^2 – 2W/m)
1(c) 2x / (x – 4y)
1(d) x = 7 or -1
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2(a) 4.12 x 10^10 kWh
2(b) 40.5% (to 3 SF)
2(c) 1439 kWh (to the nearest kWh)
2(d) 26.2% (to 3 SF)
2(e) 5725 GWh (to the nearest GWh)
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3(a) p = 11.4
3(b) cubic graph
3(c) Near exact answers are x = -1.54, 3.84 or 1.69 (examiners accept answers within a small range)
3(d) Exact answer for the gradient is -5.2 (examiners accept answers within a small range).
3(e) (i) straight line with positive gradient intersects the curve at one point.
3(e)(ii) Near exact answer is (4.24, 0.83) (examiners accept answers within a small range)
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4(a) 83 deg
4(b) Use AA property
4(c) Triangle EAB
4(d)(I) 5:3
4(d)(ii) 82.62 cm squared
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5(a)(I) (-6, -7) in vertical form (2×1 matrix)
5(a)(ii) 9.22 units
5(a)(iii) (4, 8.5)
5(b)(I) 4y + 3x = 16
5(b)(ii) (-2, 5.5)
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To be continued …….
9 thoughts on “Suggested answers to GCE O Level 2014 Math (4016) Paper 2”
Comments are closed.
For question 1(b)(ii) if I didn’t put +- in front of square root, am I wrong?
Yes, 1 mark deducted, as the question did not specify that u has to be a positive number. In fact, the equation W = (1/2)m(v^2-u^2) is taken from Physics, where the net work done by an object is equal to the change in its kinetic energy, u and v representing velocities which allow for directional signs.
For 3 (c), i did -1.50, 1.70 and 3.80! Stupid me for correcting to 3 sf! How?
-1.50 and 1.70 are acceptable. 3.80 is a too far off.
My gradient is -4.44 for question 3d! which is far off from your -5.2!
What will be the likely cut off for A1? Please let it NOT be 92 to 95% ……. o dear!
Yes, -4.44 would be marked wrong. I think this time the A1 will be around 90%.
Two days and not updated yet from Question 3?
Sorry, had been busy with tutoring A-level students and takeover of a learning centre.
Oh I see… haha must be busy. In that case take your time ☺️