A student measured the temperature of water every 2 minutes as it was heated. Her results table showed: Time (min): 0, 2, 4, 6, 8 and Temperature (°C): 25, 35, 48, 62, 78. When plotting this data on a graph, which variable should be placed on the x-axis?

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Question

A student measured the temperature of water every 2 minutes as it was heated. Her results table showed: Time (min): 0, 2, 4, 6, 8 and Temperature (°C): 25, 35, 48, 62, 78. When plotting this data on a graph, which variable should be placed on the x-axis?

Accepted Answer

Time — Award 1 mark for identifying that the independent variable (time) is plotted on the x-axis. A (Temperature) is incorrect — the dependent variable is plotted on the y-axis. C and D are incorrect — proper graphing convention requires independent variable on x-axis and dependent variable on y-axis.

Answer

Temperature

Answer

Neither variable

Answer

Time

Answer

Both variables on the x-axis

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