# Sine Problem

1. Jun 13, 2008

### temaire

1. The problem statement, all variables and given/known data
The half-wave design may be represented as a portion of a sine function. Determine a sine function that models the half wave design, assuming that the origin is at the point (0,0). Express in the form $$y=asin(b(x-c))+d$$
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2. Relevant equations
$$y=asin(b(x-c))+d$$

3. The attempt at a solution
My answer is $$y=4sin(\frac{\pi}{10}(x+5))+7$$

Am I right? I was just confused when the question said to represent it as a portion of a sine function.

Last edited by a moderator: Apr 23, 2017 at 1:31 PM
2. Jun 13, 2008

### konthelion

The function is fine, you just need to define a domain for the half-wave design.

3. Jun 13, 2008

### temaire

Thanks. I forgot to write it down, but the question already provides the domain of x between -5 and 5.