c. (4) for method which may √ include substitution by k for solving quadratic √ for √ for √ 1.4 Given that is a point on the graph of , find rounded to two decimal places. (3) a for substitution √ for isolating a √ for √ 1.5 Given and : Determine a value of such that the equation has two k distinct rational roots. (1) For real and rational, must be a perfect for k √ square: i.e. = 0 or 9 k Determine a value of such that the roots of the equation are k irrational. (1) Here must be positive, non-perfect square: for = 2 or 6 or 8 k k √ i.e. = 2 or 6 or 8 k [27] QUESTION 2 2.1 Siya needs R1000 urgently. A 'loan shark' agrees to loan it to him for one month, but he would have to repay R1200. Determine the monthly interest rate that the loan shark is charging for this one month loan. (2) for substituting values √ for solving for i √ Siya notices that the local bank charges interest at 11% p.a., compounded monthly, on all loans. How long, rounded to the
c. (4) √ for method which may include substitution by k √ for solving quadratic √ for √ for 1.4 Given that is a point on the graph of , find a rounded to two decimal places. (3) √ for substitution √ for isolating a √ for 1.5 Given and : Determine a value of k such that the equation has two distinct rational roots. (1) For real and rational, k must be a perfect square: i.e. k = 0 or 9 √ for Determine a value of k such that the roots of the equation are irrational. (1) Here k must be positive, non-perfect square: i.e. k = 2 or 6 or 8 √ for k = 2 or 6 or 8 [27] QUESTION 2 2.1 Siya needs R1000 urgently. A 'loan shark' agrees to loan it to him for one month, but he would have to repay R1200. Determine the monthly interest rate that the loan shark is charging for this one month loan. (2) √ for substituting values √ for solving for i Siya notices that the local bank charges interest at 11% p.a., compounded monthly, on all loans. How long, rounded to the
Grade%2012%20Paper%201%20Prelim%202017%20-%20MEMO.docx