Solve the problem.The following bar graph shows the average annual income for single mothers over several years.
The linear function I(t) = 775.8t + 24,269 can be used to model the average annual income for single mothers as a function of t, where t represents the number of years since year 0. Interpret the slope.
A. Average annual income increased at a rate of $24,269 per year.
B. Average annual income decreased at a rate of $775.80 per year.
C. Income increased by $775.80 from year 0 to year 5.
D. Average annual income increased at a rate of $775.80 per year.
Answer: D
Mathematics
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