For Exercises 19 and 20, refer to the following figure, which shows consumption of r...

For Exercises 19 and 20, refer to the following figure, which shows consumption of red meat in the United States and in China over the period 1980–1996. Let y = f (t) denote the consumption function for the United States, and let y = g(t) denote the consumption function for China.

Consumption of red meat in United States and in China, 1980–1996