# Need help with (b) please show your work! Linear functions and percentages

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Mathematics
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Question description

The percentage of high school students who drink and drive was 17.5% at the beginning of 2001 and declined linearly to 10.3% at the beginning of 2011.

(a) Find a linear function f(t) giving the percentage of high school students who drink and drive in year t, where
t = 0
corresponds to the beginning of 2001
(t = 0).

f(t) =
−0.72t+17.5
(b) If the trend continues, what will the percentage of high school students who drink and drive be at the beginning of 2019

(Top Tutor) Daniel C.
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