Chapter 14 Trigonometric Graphs, Identities, and Equations - 14.5 Write Trigonometric Functions and Models - 14.5 Exercises - Skill Practice - Page 944: 2

See answer below.

1) First Method: Use trigonometric functions $sine$ and $cosine$ that model a sinusoid to calculate the values of $a,b,h,k$ for a) $y=a \sin b (x-h) +k $ and $y=a \cos b (x-h)+k$ 2 ) Second Method: Use a Graphing Calculator that has a sinusoidal regression feature.