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Mathematics 15 Online
OpenStudy (anonymous):

Older Mothers The number of children born to mothers 40 years old or older in 2000 was 70 thousand and in 2004 it was 110 thousand. (Source: National Center for Health Statistics.) (a) Calculate the slope of the line passing through (2000, 70) and (2004, 110). (b) Interpret the slope as a rate of change.

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