## Algebra 2 (1st Edition)

Published by McDougal Littell

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

#### Answer

See answer below.

#### Work Step by Step

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.

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