General Mathematics Paper 2,May/June. 2010

General Mathematics Paper 2, May/June. 2011

Questions:	1	2	3	4	5	6	7	8	9	10	11	12	13	Main

General Comments
Weakness/Remedies
Strength

Question 10
(a) Copy and complete the table of values for the relation V = -X² + X + 2 for -3 ≤ x ≥ 3. (b) Using scales of 2 cm to 1 unit on the x-axis and 2 cm to 2 units on the v-axis, draw a graph of the relation y = -X² + X + 2. (c) From the graph, find the: (i)Minimum value of y; (ii)Roots of the equation X² - x -2 = 0; (iii)Gradient of the curve at x = -0.5.
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Observation
This question was reported to have been attempted by majority of the candidates who were able to complete the table of values and plotted the graph correctly. However, majority ofthe candidates were reported not to draw the tangent to the curve as required. Hence they were unable to determine the gradient of the curve at x = -0.5.