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Last updated: 2/2/2024

Ay 000 500 3000 2500 2000 1500 1000 500 0 0 2 6 8 10 12 14 16 Years after 1980 The blue curve shows national health expenditures in billions of dollars The red curve shows its derivative Q 4 National health expenditures in billions of dollars from 1980 to 1994 are given by the function f t in the graph to the left a How much money was being spent at the beginning of 1983 700 billion b Approximately how fast was the rate of spending increasing in 1990 300 billion per year c One trillion dollars was being spent at the beginning of which year