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Laboratory
3. A team of students wants to study the effect of temperature on bacteria
growth. They put the dishes in different places, an incubator (37°C),
a lab room (21°C), a refrigerator (10°C), and a freezer (0°C). Bacterial
growth is measured by estimating the percentage of each dish that is
covered by bacteria at the end of a 3-day growth period.
What type of graph would be used to present these data? Explain why.

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Answer:

Line graph

Explanation:

A line graph seems most appropriate in this scenario as line graphs are usually easiest to use when illustrating the change of something over time (in this case, temperature over three days). By using a line graph, you can easily see the effect temperature has on the growth by the direction of the line - whether it slants up or down.