Interactive practice questions
A racing car starts the race with $140$140 litres of fuel. From there, it uses fuel at a rate of $2$2 litres per minute.
Complete the table of values:
| Number of minutes passed ($x$x) | $0$0 | $5$5 | $10$10 | $15$15 | $20$20 | $70$70 |
|---|---|---|---|---|---|---|
| Amount of fuel left ($y$y) | $\editable{}$ | $\editable{}$ | $\editable{}$ | $\editable{}$ | $\editable{}$ | $\editable{}$ |
Easy
2min
There are $20$20 litres of water in a rainwater tank. It rains for a period of $24$24 hours and during this time the tank fills up at a rate of $8$8 litres per hour.
Easy
2min
The cost of a taxi ride $C$C is given by $C=2.50t+3$C=2.50t+3 where $t$t is the duration of the trip in minutes.
Easy
3min
Let the height of a candle be $y$y cm. If the candle is lit, the height decreases according to the equation $y=-2t+9$y=−2t+9, where $t$t is the elapsed time in minutes. A table of values is provided below.
Plot the points in the table of values.
Easy
< 1min
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