The math SAT score of a high school student graduate can be approximated by S(x)=573-133(0.987), where x is the household income of the student in thousands of dollars per year. What is the average rate of change of the SAT score for students with household incomes ranging from $40,000 to $60,000 per year, in points per thousand dollars? Round answers to 3-decimal places and do not include units with your answer.

0.907

Step-by-step explanation:

The average rate of change in a function from x= a to x = b is given by :-

Given:

Then, the average rate of change of the SAT score for students with household incomes ranging from $40,000 to $60,000 per year will be :

Hence,  the average rate of change of the SAT score for students with household incomes ranging from $40,000 to $60,000 per yearr= 0.907

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