Functions can be represented by equations and graphs
- There are 2 million users online at 9 am
- The domain is [0,23], while the range is [2,
)
The function is given as:
At 9am, x = 9.
So, we have:
Evaluate the difference
Evaluate the exponent
Evaluate the sum
Approximate
Hence, there are 2 million users online at 9 am
<h3>The function transformation</h3>We have:
The parent function is:
So, the transformations applied to the parent function are:
- Vertical compression by a scale factor of 4
- Horizontal shift to the right by 3 units
- Vertical shift up by 2 units
The domain is the possible input values, and the range are the possible output values.
There are 24 hours in a day.
So, the domain is:
Domain = [0,23]
While the range is [2,)
Read more about function transformation at: