Interpret the intercepts for each situation. Use the intercepts to graph the function. 9. Biology A lake was stocked with 350 trout. Each year, the population decreases by 14. The population of trout in the lake after x years is represented by the function f(x)= 350 – 14x. Trout Population trx) 450 400 350 300 250 200 150 100 50 0 5 10 15 2025 30 35 40 45 Time (years) 10. The air temperature is -6°C at sunrise and rises 3°C every hour for several hours. The air temperature after x hours is represented by the function f(x) = 10 = 3x – 6. 8 6. 4 2 23 45 -2 -4 -6 -8 -10 Time (hours) Population Temperature (°C)

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