A) By completing the square, find in terms of the constant k the roots of the equation x^2 +kx -6 = 0 (4 marks) b) Hence find the exact roots of the equation x^2 + 4x - 6 = 0 (2 marks)

Which graph represents the equation y =4x

Match the scale and the actual area to the area of the corresponding scale drawing. scale: 1 inch to 4 feet actual area: 128 square feet scale: 1 inch to 7 feet actual area: 147 square feet scale: 1 inch to 8 feet actual area: 256 square feet scale: 1 inch to 5 feet actual area: 225 square feet area of scale drawing scale and actual area scale drawing area: 3 square inches arrowright scale drawing area: 8 square inches arrowright scale drawing area: 4 square inches arrowright scale drawing area: 9 square inches arrowright

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2 acellus answer