Answer:
x = -6 and x = 4
Step-by-step explanation:
In math, the critical points of a function are the points where the derivative equals zero.
So, first we will find the derivative of the function. The derivative is:
Now, we are going to make the derivative equal zero and find the answers of the equation.
So we have that the critical points are the answers to this equation:
and
Thus, the critical points are x=-6 and x=4
We start by calculating the assessed value, that is 41% of the price.
The price is $92,000.
Then, the assessed value is:
The property tax rate is $39.50 per $1000 of assessed value, so we can express this rate as:
We then can multiply this rate by the assessed value to calculate the total property tax:
NOTE: we could have also multiplied 39.50 by 37.72. The value 37.72 is the thousands of dollars of assessed value. We would have obtained the same result: 39.50*37.72=1489.94.
Answer: the property tax is $1,489.94.