1) Factorise completely 2x2 - 8x a) x (2x - 4) b) 2x (x - 4) c) 2 (x2 - 8) d) 2x (x + 4) 2) The roots of quadratic equation 2x2 + 4x + 9 = 25 a) -2, -4 b) -2, 4 c) 2, -4 d) 2, 4 3) Solve -2y2 + 3y = 6y - 9 a) y = 3/2, -3 b) y = -3/2, -3 c) y = -3/2, 3 d) y = 3/2, 3 4) (2 - 3x)2 a) -9x2 + 12x - 4 b) 9x2 + 12x + 4 c) -9x2 - 12x - 4 d) 9x2 - 12x + 4 5) A ball was thrown upward and the height after t seconds is (12t - t2) meter. Calculate the possible time, in t, when the ball reaches a height of 20 meters. a) 1 b) 2 c) 3 d) 4 6) The width of a Mathematics book is x cm. If its length is 4 cm longer than its width and its area is 32 cm2, calculate the perimeter of the Mathematics book. a) 6 cm b) 12 cm c) 24 cm d) 32 cm 7) The price of a comic bought by Kaw Foo is RMy. If the total cost that needs to be paid by Kaw Foo to buy (y+8) comics is RM(y+8). Calculate the total amount paid by Kaw Foo. a) RM 6 b) RM 7 c) RM 8 d) RM 9 8) Determine the symmetry axis of the function graph f(x)=-2x2+8x-14 a) 2 b) -2 c) 4 d) -4 9) Foctorise completely 2q2-8 a) 2(q2 - 4) b) 2(q - 8) (q + 8) c) 2(q - 2) (q + 2) d) 2(q - 4) (q + 4) 10) The root for an equation x2 - px + 6 = 0 is 3. Find the value of p. a) 4 b) 5 c) 6 d) 7

Chapter 1 (Form 4)

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