Even Odd Functions

Is the sine function   , y = sin(x)   an even or odd function?
It is an odd function. y = sin 46⁰ = .71934 and y = sin(-46)⁰ = -.71934
  
Mathematically we state that (x, y) is on the graph then (-x, -y) is also on the graph.
The graph of an odd function is symmetrical to the origin.

Is the sine function a one to one function?
No because each y has infinite number of x values.   
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