Chapter 1 Sets and Functions Exercise 1.1 Write each of the following sets (i) in set builder form (ii) in listing its elements. (1) The set N of natural numbers. (2) The set J of all positive integers.

19.The line 3x + 4y=12 cuts the Y-axis at A.(0,2) B.(2,0) C.(3,0) D.(0,3) E.(0,4) Which of the following points, lies on the line 2x+y=6? (1,4) 2.(0,6) 3.(2,0) A.1 only B. 2only C. 1and3 only D. 2and3

Answer any FOUR questions. (32 marks) (a) (i) Define buffer solution. (ii) Calculate the pOH of a buffer solution containing 0.2 mole of ethanoic acid (pKa=3.8) and 0.05 mole of sodium ethanoate per 200

Ratio, proportion and Variation 4 gallons : 6 quarts=………. A. 2:3 B. 8:3 C. 4:6 D. 3:8 E. None of these 6600 feet : 2 miles =………… A. 8:5 B. 5:8 C. 33:1 D. 22:1 E.3300:1 If 1/2x+y=2x, then x:y=………. A. 1:2

Sets and Functions Exercise 1.1 Write each of the following sets (i) in set builder form (ii) in listing its elements. (1) The set N of natural numbers. (2) The set J of all positive integers. (3) The

Write each of the following sets (i) in set builder form (ii) in listing its elements. (1) The set N of natural numbers. (2) The set J of all positive integers. (3) The set P of all prime numbers. (4)

.(4,-5) B.(4,0) C.(0,-5) D.(-4,-5) E.(-4,5) 3.The point in the X-axis is A.(-1,6) B.(1,-6) C.(-1,-6) D.(0,6) E.(6,0) Which pair of points given below will determine a vertical line? A.(3,5) and (-3,5)