f(t) = mt + b+ A sin-

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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f(t) = mt + b+ A sin-
Transcribed Image Text:f(t) = mt + b+ A sin-
Expert Solution
Step 1

Given data:

 

 

The given price of the model is: f(t)=mt+b+Asin(πt/6).

The given price on the first January is: f(0)=$20.00.

The given price on the first April is: f(3)=$37.50.

The given price on the first July is: f(6)=$35.00.

The given price on the first October is: f(9)=$32.50.

The given price on the first January is: f(12)=$50.00.

 

(a)

Substitute 0 for t in the given expression of price function.

Trigonometry homework question answer, step 1, image 1

Substitute the given value of f(0) in the above expression.

Trigonometry homework question answer, step 1, image 2

Substitute 6 for t in the given expression of price function.

Trigonometry homework question answer, step 1, image 3

Substitute the given value of f(0) and m in the above expression.

Trigonometry homework question answer, step 1, image 4

Substitute 3 for t in the given expression of price function.

Trigonometry homework question answer, step 1, image 5

Substitute the value of t and above-calculated constants in the above expression.

Trigonometry homework question answer, step 1, image 6

 

Step 2

The price function for February month f(1), march month f(2), may month f(4), June month f(5), August month f(7), September month f(8), November month f(10), and December month f(11) are,

Trigonometry homework question answer, step 2, image 1

Substitute the given values in the above expression.

Trigonometry homework question answer, step 2, image 2

Step 3

The expression for the variation in price from January to February is,

Trigonometry homework question answer, step 3, image 1

Substitute the given values in the above expression.

Trigonometry homework question answer, step 3, image 2

The expression for the variation in price from February to March is,

Trigonometry homework question answer, step 3, image 3

Substitute the given values in the above expression.

Trigonometry homework question answer, step 3, image 4

The expression for the variation in price from March to April is,

Trigonometry homework question answer, step 3, image 5

Substitute the given values in the above expression.

Trigonometry homework question answer, step 3, image 6

The expression for the variation in price from April to May is,

Trigonometry homework question answer, step 3, image 7

Substitute the given values in the above expression.

Trigonometry homework question answer, step 3, image 8

The expression for the variation in price from May to June is,

Trigonometry homework question answer, step 3, image 9

Substitute the given values in the above expression.

Trigonometry homework question answer, step 3, image 10

The expression for the variation in price from June to July is,

Trigonometry homework question answer, step 3, image 11

Substitute the given values in the above expression.

Trigonometry homework question answer, step 3, image 12

The expression for the variation in price from July to August is,

Trigonometry homework question answer, step 3, image 13

Substitute the given values in the above expression.

Trigonometry homework question answer, step 3, image 14

The expression for the variation in price from August to September is,

Trigonometry homework question answer, step 3, image 15

Substitute the given values in the above expression.

Trigonometry homework question answer, step 3, image 16

The expression for the variation in price from September to October is,

Trigonometry homework question answer, step 3, image 17

Substitute the given values in the above expression.

Trigonometry homework question answer, step 3, image 18

 

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