Transcribed Image Text: The figure to the right shows the total sales, in thousands of dollars, from the distribution of x thousand
catalogs. Find and interpret the average rate of changes of sales with respect to the number of catalogs
distributed for the given changes in x.
70-
60-
50-
(a) 15 to 25
(d) What is happening to the average rate of change of sales as the number of catalogs distributed
increases?
(b) 25 to 35
(c) 35 to 45
40-
46
43
37
E 30-
320-
26
10-
0-
10 20 30 40 50 6O
Number (in thousands)
Sales (in thousands)
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