Select the co-ordinate that satisfies the following straight-line equation:   

What is the equation of a vertical line through ? 

What is the gradient and the y-intercept for a straight line with the equation ?

Select the most correct meaning of the following expression in words: .

In a straight line with the equation , if ,  then slope is _________.

If a vertical and horizontal number lines intersect each other, they form a right angle (an angle of 90 degrees), and a (x;y)  co-ordinate system of axes is formed. The horizontal line is called the _______.

Thabo wants to buy wireless Bluetooth earphones which costs R700. He is impatient and does not want to wait and save the money to buy himself the earphones. He applies for a bank loan. The bank approves the loan and gives Thabo four (4) years to amortise the loan. The bank charges an interest rate of 6% compounded yearly for the loan. Find the yearly instalment that Thabo has to pay to the bank.

Frank needs to pay R60 000,00 towards his son’s university fees in three years’ time. If he has R45 150,30 now, at what interest rate per year compounded monthly, must he invest his money? 

Gloria bought a house for R1 800 000. She managed to secure a loan at an interest rate of 7,5% per year, compounded every four months, for a period of 30 years. If the periodic payments are R55 468,56. Determine the outstanding balance at the end of 20 years.

Kgomotso bought a townhouse for R1 285 000. She managed to secure a loan at an interest rate of 11,35% per year, compounded every six months, for a period of 20 years. Determine the period payments Kgomotso must make.