A TV has a listed price of $540.99 before tax. If the sales tax rate is 9.75% , find the total cost of the TV with sales tax inc
1 answer:
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Answer:
b.
Step-by-step explanation:
The graph can be divided into 4 regions.
Region 1 is for
Region 2 is for
Region 3 is for
Region 4 is for
So, for the region 1, the values of goes on decreasing with increasing
. Therefore, the function is decreasing in the interval
.
Now, for the region 2, the values of increases with increasing
. So, the function is increasing in the interval
.
For the region 3, the the values of goes on decreasing with increasing
. Therefore, the function is decreasing in the interval
.
Now, for the region 4, the values of increases with increasing
. So, the function is increasing in the interval
.
Therefore, regions 2 and 4 are the regions when the function is increasing.
Hence, the correct option is b.