Interactive practice questions
A dam used to supply water to the neighboring town had the following data recorded for its volume over a number of months.
| Month | $1$1 | $2$2 | $3$3 | $4$4 |
|---|---|---|---|---|
| Volume (billions of litres) | $112$112 | $106$106 | $110$110 | $80$80 |
Given the data in the table, plot the points on the number plane.
Is this relationship linear?
Yes
No
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.
Let the volume of water in a tank be $V$V L. If the tank is initially empty, then the amount of water in the tank is given by $V=4t$V=4t where $t$t is the elapsed time in minutes. A table of values is given below.
Plot the points in the table of values.
Let the height of a candle be $y$y cm. If the candle is lit, the height decreases according to the equation $y=-2t+8$y=−2t+8, where $t$t is the elapsed time in minutes.