Answer:
- amplitude: 1270
- frequency: 1.1/(2π) ≈ 0.175 cycles per year
- period: 5.712 years
Step-by-step explanation:
The parameters describing the graph of a sinusoidal function can be determined fairly easily from the coefficients of the function and its arguments.
__
The amplitude of a sinusoidal function is the coefficient of the sine or cosine function. Here, the amplitude is 1270.
__
The frequency is the coefficient of the variable in the argument of the trig function, divided by 2π. Here, that is (1.1)/(2π) ≈ 0.175 cycles per year. The units of frequency are the inverse of the time units of the argument variable.
__
The period is the reciprocal of the frequency:
period = 2π/1.1 ≈ 5.712 . . . years
