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| style="height:20px; width:400px; text-align:center;" |Plot the points on the graph using an X at each point.
| style="height:20px; width:400px; text-align:center;" |Draw one straight [[Line of Best Fit|line of best fit]] to the graph.
We can use this line to predict how tall the stem would have grown if we'd given it 25ml of water each day.
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