A 154-1b person burns 420 calories per hour riding an exercise bicycle at a rate of 15 mi/hr. Write a function rule to represent the total calories burned over time by that person. Explain how the information in the relates to the function.
The function rule to represent the total calories burned over time by the 154-lb person is:
Calories burned = 420 * t
where "t" is the time in hours.
The information given in the problem is the person's weight (154 lbs), the rate at which they are riding the exercise bicycle (15 mi/hr), and the amount of calories burned per hour at that rate (420 calories/hr). This information is used to calculate the total calories burned by multiplying the rate of calories burned per hour by the amount of time spent exercising. Therefore, the function rule uses the rate of calories burned per hour (420) and the time spent exercising (t) to calculate the total number of calories burned.