Please only answer Q70 Thank you! ### For Exercises 69 and 70, refer to the following:A company’s total revenue \( R \) (in millions of dollars) is related to its advertising costs \( x \) (in thousands of dollars). The relationship between revenue \( R \) and advertising costs \( x \) is illustrated in the graph.#### Graph Description:- The x-axis represents advertising costs in thousands of dollars, ranging from 0 to 600.- The y-axis represents revenue in millions of dollars, ranging from 0 to 50.- The graph shows a curve that initially rises, reaches a peak, and then declines. ### Exercise 69. Business. Analyze the graph of the revenue function.**a.** Determine the intervals on which revenue is increasing and those on which it is decreasing.**b.** Identify the zeros of the function. Interpret the meaning of zeros for this function.### Exercise 70. Business.Use the graph to identify the maximum revenue for the company and the corresponding advertising costs that produce maximum revenue.

Name: Please only answer Q70 Thank you! ### For Exercises 69 and 70, refer t
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Description: Please only answer Q70 Thank you! ### For Exercises 69 and 70, refer to the following:A company’s total revenue \( R \) (in millions of dollars) is related to its advertising costs \( x \) (in thousands of dollars). The relationship between revenue \