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  3. 201003 diag 20repeaterspdf section a multiple choice question 1 i...

Question: 201003 diag 20repeaterspdf section a multiple choice question 1 i...

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201003 Diag 20Repeaters,pdf SECTION A MULTIPLE CHOICE Question 1. (i) What is the gradient of y x3 3x2 +4, when x 1? A. 3 C. 0 E. None of the above B.-3 D. 2 [4] mks (ii) Find the equation of the straight line passing through the points (4.5) and (2.4). D. y+ E. None of the above [4] mks (iii) Find Lim1 A. 0 C. 4 E. None of the above B. op [4] mksQuestion 3 (a) Find the constantsaandb uch that the function. f(x)= ax + b, -1<x<3 is continuous in the entire real number line (b) Using either the Inverse Method or Cramers Rule, solve the system below: 6, x 2 3 [5] mks [15] mks Question 4 2x35x2 + 6x 3 Find Lin-2x3-2x2 + x-1 (a) [8] mks (b) A manufacturer determines that q units of product will be sold if the selling price is 400-0.05q dollars for each unit. If its production cost for q units is 500 + 10q, find, (i) the revenue function, R (ii) the profit function, (ii) the number of units that will maximize profit. (iv) the price per unit when marginal revenue is 300 [2] mks [2] mks [4] mks [4] mks END OF PAPER

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