The interval at which the function decrease is (-2,0) and the number of tulip bulb in the garden is 12.8
The intervals at which the function decrease?
From the table, we can see that the value of the function decreases from 12 to 3 and finally to 0, when the values of x increase from -2 to 0
Hence, the interval at which the function decrease is (-2,0)
The square garden
The square garden has a side length x.
So, the area (A) of the garden is:
A = x²
From the question, we understand that 5 tulip bulbs are to be planted per unit area.
This means that the number of bulb in the garden is:
n = 1/5 * x²
Evaluate
n = 0.2x²
When the side length of the garden is 8, we have:
n = 0.2 * 8²
Evaluate
n = 12.8
Hence, the number of tulip bulb in the garden is 12.8
Read more about areas at:
https://brainly.com/question/24487155
Read more about functions at:
https://brainly.com/question/4025726
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