What is the upper bound of the function?
f(x)=2x4−5x2−45x−3
enter your answer in the box.
upper bound =

+∞  

Step-by-step explanation:

The term of highest degree is 2x⁴,and it has a positive coefficient, so there is no upper bound.

The upper bound is +∞.

The graph below shows that the function tends to infinity as x goes in both the positive and negative directions.

She will have to pay $33 in taxes for this employee benefit.

Step-by-step explanation:

There is a mistake in the question so the correct question is below:

Helen Ming receives a travel allowance of $220 each from her company for time away from home. If this allowance in taxable and she has a 15% income tax rate, what amount will she have to pay in taxes for this employee benefit?

Now, to get the amount she have to pay in taxes:

Travel allowance = $220.

Income tax rate = 15%.

Now, to get the amount of tax:

15% of $220.

Therefore, she will have to pay $33 in taxes for this employee benefit.