1. A certain person's blood pressure oscillates between 140 and 80. If the heart beats once every second, write a sine function that models the person's blood pressure.
2. The average monthly temperatures for the city of Seattle, Washington, are given below.
a. Find the amplitude of a sinusoidal function that models the monthly temperatures.
b. Find the vertical shift of a sinusoidal function that models the monthly temperatures.
c. What is the period of a sinusoidal function that models the monthly temperatures?
d. Write a sinusoidal function that models the monthly temperatures, using t 1 to represent January.
e. According to your model, what is the average monthly temperature in February? How does this compare to the actual average?
f. According to your model, what is the average monthly temperature in October? How does this compare to the actual average?