The interval at which the function decrease is (-2,0) and the number of tulip bulb in the garden is 12.8
<h3>The intervals at which the function decrease?</h3>
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)
<h3>The square garden</h3>
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:
brainly.com/question/24487155
Read more about functions at:
brainly.com/question/4025726
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