Question

The hourly temperature at Portland, Oregon, on a particular day is recorded below.

Answer 1

a. Amplitude: 19.65446

b. Vertical Shift: 58.00713

c. Period: 2
`\pi`/0.22797 = 27.56146

d. 19.65446 * sin(0.22797x + 1.79552) + 58.00713

e. Model's Temperature at 10 A.M.: f(-7) = 61.91

This value is 9.91 degrees higher than the actual value.

Explanation:

Used graphing calculator's stat calculations