2.Swine flu is attacking Porkopolis. The function below determines how many people hav the swine flu where t = time in days and S = the number of people in thousands.
S(t) = 9t – 4
a) Find S(4).
b) What does S(4) mean?
c) Find t when S(t) = 23.
d) What does S(t) = 23 mean?
e) Graph the function.

where is the figure

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation: