Interactive practice questions
A paver needs to pave a floor with an area of $800$800 square metres. He can pave $50$50 square metres a day.
Complete the table showing the area left to pave at the start of each day:
| Day | Area of floor left to pave ($m^2$m2) |
|---|---|
| $1$1 | $800$800 |
| $2$2 | $\editable{}$ |
| $3$3 | $\editable{}$ |
| $4$4 | $\editable{}$ |
| $5$5 | $\editable{}$ |
What type of change is this?
Linear growth
Exponential growth
Linear decay
Exponential decay
For a fibre-optic cable service, Christa pays a one off amount of $\$200$$200 for installation costs and then a monthly fee of $\$30$$30.
Luigi starts his career with a monthly wage of $\$5400$$5400. At the beginning of each year that follows he receives a raise and his monthly wage for that year will be $\$120$$120 greater than the previous year.
A telecommunications company sells $1700$1700 mobile phones in the first month of its operation. The company plans to increase its sales by $150$150 mobile phones each month.