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7.01 Graphing linear functions

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
a

Given the data in the table, plot the points on the number plane.

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b

Is this relationship linear?

Yes

A

No

B
Easy
< 1min

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

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.

Easy
< 1min

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.

Hard
3min
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