# Sine Identity

In the applet below, the graph of the function $f\left(x\right)=sin\left(x\right)$ is displayed. [br][br]Place the BIG WHITE POINT anywhere you'd like prior to sliding the slider. [br][br]Answer the questions that follow.
##### 1.
Write a new trigonometric identity that expresses the relationship between $sin\left(-x\right)$ and $sin\left(x\right)$.
##### 2.
What else can you conclude about the parent sine function $f\left(x\right)=sin\left(x\right)$? [br]For a hint, [url=https://www.geogebra.org/m/GY9tNvfB]click here[/url].