During a certain time of year, the daily temperature in a certain city, in degrees Celsius
follows a
periodic pattern. The graph below shows the temperature over two days, where
time
t is measured in hours after 12:00 a.m. (midnight) on the first day.
Temperature (in degrees Celsius)
16
12
(1,13)
(13, 19)
(25, 13)
(37, 19)
24
6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time (in hours)
Write an equation in terms of y, temperature in degrees
Celsius, and t, time in hours, to represent the given context.
y=