Based on the data provided on the growth rate of carrots and the growfast fertilizer applied, a relevant theory would be that the higher the amount of growfast applied, the higher the growth rate of the carrots.
How is fertilizer affecting the growth rate?
We see that when the first gram of growfast was added, the growth rate of the carrots became:
= 2.0 - 0.5
= 1.5 mm/ day
After the 2nd gram was added, the growth rate became:
= 4.5 - 2
= 2.5 mm/ day
By the time the 6th gram of growfast was added, the growth rate of the carrots became:
= 24.5 - 18
= 6.5 mm/day
This showed that higher amounts of growfast fertilizer led to increased growth in the carrots.
Find out more on the impact of fertilizer on plant growth at https://brainly.com/question/5972316
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