Average High Temperature (F) Step 3: Write the sinusoidal curve equation that models the data y...

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Average High Temperature (F) Step 3: Write the sinusoidal curve equation that models the data y = Step 4: Graph the curve using x = 0 for January, and x = 11 for December, so x = 12 will be the start of the next year, or end of the period. Average High Monthly Temperatures 90 80 70 60 50 40 30 20 10 0 01 2 3 4 5 6 7 8 9 10 11 12 Average High Temperature (F) Step 3: Write the sinusoidal curve equation that models the data y = Step 4: Graph the curve using x = 0 for January, and x = 11 for December, so x = 12 will be the start of the next year, or end of the period. Average High Monthly Temperatures 90 80 70 60 50 40 30 20 10 0 01 2 3 4 5 6 7 8 9 10 11 12