Evaluating and Solving Rational Functions
Mr. Ewald decides to make and sell Left Handed Smoke Shifters as a side business. The function below gives the average cost (in dollars) per Smoke Shifter when x Smoke Shifters are produced.

A(x)=10x+600x\displaystyle {A}{\left({x}\right)}=\frac{{{10}{x}+{600}}}{{x}}

Use the function to answer the following questions.
Determine A(19), and complete the sentence explaining the meaning of your answer. Round your answer to the nearest cent.

The average cost to produce 19 Left Handed Smoke Shifters is $.
How many Smoke Shifters must be produced in order to reduce the average cost to $18 each?

To reduce the average cost to produce each Smoke Shifter down to 18, Smoke Shifters must be produced.
Give the equation of the horizontal asymptote of A(x)

Horizontal Asymptote:  

Select a sentence to explain its significance in this situation.

;

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