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Mathematics 18 Online
OpenStudy (anonymous):

In 1980, median family income was about $19,000, an in 2000 it was about $42,000. a) Find the slope of the line passing through the points (1980,19000) and (2000, 42000). b) Intercept the slope as a rate of change. c) If this trend continues, estimate the median family income in 2003. Please help me and show me how to do this.

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