1For a straight-line graph defined by the equation y = -3x + 12, determine the y-intercept of the line.
2A line passes through point A(2; 5) and point B(6; 17). Calculate the slope of the line and determine its trend.
3Calculate the simple interest earned on an investment of R12,000.00 at a rate of 7.5% per year for a period of 4 years.
4In the context of compound interest, which of the following statements are correct regarding the formula A = P(1 + i)^n?
5A loan of R50,000.00 is taken at a simple interest rate. If the total amount to be paid back after 3 years is R62,000.00, what is the yearly interest rate?
6In an amortization schedule, how is the 'Principal repaid' for a specific month calculated?
7Mrs. Khumalo wants to buy a fridge costing R8,000.00 on hire purchase. She pays a 15% deposit. What is the remaining balance that will be used to calculate the loan installments?
8Which of the following conditions would result in a straight line having a negative slope (descending trend)?
9A savings account offers 12% interest per year, compounded monthly. What is the effective interest rate per month (i) used in calculations?
10If an investment of R10,000.00 is compounded quarterly at 8% per annum for 2 years, how many total compounding periods (n) are there?
