# Sine Problem

## Homework Statement

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 $$y=asin(b(x-c))+d$$
http://img231.imageshack.us/img231/3549/archpc5.jpg [Broken]​
[/URL]

## Homework Equations

$$y=asin(b(x-c))+d$$

## 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: