The table below shows the highest daily temperature (in degrees F) averaged over the month for the cities of Syracuse, Washington DC, and Austin. (Table of data taken from mathbits.com)
The average daily high temperature in Syracuse can be modelled by a sinusoidal function of the form 𝑎sin𝑏𝑥+𝑐+𝑑. Use Desmos to determine suitable values of 𝑎, 𝑏, 𝑐, and 𝑑.