Is -3[(x-3)^2-9] Increasing or Decreasing on Domain [0,6]?

In summary, a decreasing increasing function is a concave function that first decreases and then increases over a certain interval. It can be identified by plotting the data points on a graph or calculating the first and second derivatives. These functions are commonly used to model real-world phenomena and optimize processes. They differ from increasing functions in terms of their curves and derivatives, and can have multiple peaks and valleys within a given interval.
  • #1
The mentalist
5
0
Hello everyone,
Can you please show me how to 'determine weather this funtion -3[(x-3)^2-9] is increasing or decreasing on the the domain [0,6]
Thanks in advance .
 
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  • #2
The mentalist said:
Hello everyone,
Can you please show me how to 'determine weather this funtion -3[(x-3)^2-9] is increasing or decreasing on the the domain [0,6]
Thanks in advance .

Do a rough plot and look.

Take the derivative and see is it positve or negative.
 
  • #3
y= -3x^2+ 9 is a parabola with vertex at (0, 9), opening downward. It is increasing for x< 0 and decreasing for x> 0. Do you see how that answers your question?
 

Related to Is -3[(x-3)^2-9] Increasing or Decreasing on Domain [0,6]?

1. What is a decreasing increasing function?

A decreasing increasing function is a type of mathematical function that first decreases and then increases over a certain interval. It is also known as a concave function.

2. How do you identify a decreasing increasing function?

To identify a decreasing increasing function, you can plot the data points on a graph and look for a curve that first slopes downwards and then upwards. Alternatively, you can also calculate the first and second derivatives of the function and check for changes in sign.

3. What is the significance of a decreasing increasing function?

Decreasing increasing functions are commonly used to model real-world phenomena such as population growth, economic trends, and stock prices. They can also be used to optimize processes and find maximum or minimum values.

4. How is a decreasing increasing function different from an increasing function?

A decreasing increasing function is characterized by a curve that first decreases and then increases, while an increasing function has a curve that only increases. In terms of derivatives, an increasing function has a positive first derivative, while a decreasing increasing function has a first derivative that changes from negative to positive.

5. Can a decreasing increasing function have multiple peaks and valleys?

Yes, a decreasing increasing function can have multiple peaks and valleys. This means that it can increase, decrease, and then increase again multiple times within a given interval. This is commonly seen in complex systems and processes.

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