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
The value of a fridge depreciates by a constant amount each year and is modelled by the recurrence relation
$V_{n+1}=V_n-300$Vn+1=Vn−300, $V_0=1600$V0=1600
where $V_n$Vn is the value of the fridge, in dollars, after $n$n years.
The value of Belem Bank shares is decreasing by $\$1.55$$1.55 each day.
At the beginning of today's trading, the shares are worth $\$48.83$$48.83.
Skye is a salesperson and is paid a travel allowance of $\$40$$40 for each business trip she takes to demonstrate the use of the product she sells.
Each week she is also paid a retainer of $\$220$$220.