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) | $120$120 | $108$108 | $106$106 | $86$86 |
a
Given the data in the table, plot the points on the number plane.
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b
Which of the following lines best fits the data?
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A
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B
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C
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D
Easy
1min
Adam measures his heart rate at various times while running.
The data is shown below.
Easy
1min
One litre of gas is raised to various temperatures and its pressure is measured.
The data has been graphed below with a line of best fit.
Easy
1min
Scientists conducted a study to see people's reaction times after they've had different amounts of sleep.
The data is presented below with a line of best fit.
Easy
1min
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