The average daily high temperature in °C) in Karachi, Pakistan, on the tth day of the year is

approximately

T (t) = 29 - 5cos (2pi (t-12) / 365)

What are the highest and lowest average daily highs in Karachi? Give exact answers.

The highest would be 34 degrees Celsius and the lowest would be 24 degrees Celsius.

Step-by-step explanation:

What I did was make a graph. The 29 in the beginning of the function represents the vertical shift, meaning the "midline" would be y = 29. The - 5 after the 29 represents the amplitude. From there, you can go 5 under 29 (24 degrees Celsius) and 5 over 29 (34 degrees Celsius).