Question

alice needs to calculate the average pressure inside a gas cylinder. she has access to both a data table showing the pressure over time and a graph of pressure over time. which representation is probably most useful to her if she wants a precise answer? graph data table complete rajesh conducts an experiment to determine how quickly three different substances absorb heat. he measures the temperature of each substance over time. if he wants to quickly compare the heat absorption rates of the three substances, which data representation will probably be most useful to him? graph data table done

Explanation:

• For Alice's case: A data table provides exact numerical values. When calculating an average (which requires precise numbers), having the exact pressure values at different times (from the data table) is more useful than a graph (which might have approximate visual estimations).
• For Rajesh's case: A graph can quickly show trends. When comparing heat - absorption rates (which is a trend of temperature change over time), a graph allows for a visual comparison of the slopes (which represent the rate of temperature change, i.e., heat - absorption rate) of the three substances' temperature - time plots.

Answer:

• Alice: data table
• Rajesh: graph