The average daily temperature, t, in degrees Fahrenheit for a city as a function of the month of the year, m, can be modeled by the equation graphed below, where m = 0 represents January 1, m = 1 represents February 1, m = 2
represents March 1, and so on. If the equation is ? = acos
(m+1) +k what are the values of a and K?
100
17
90
80
70
60
50
40
30
20
10
1 2 3 4 5 6
7 8
9 10 11
a = 60k = 20
Save and Exit