Which set of transformations would prove triangle GFR ~ triangle GHI

A. Is not a function because it contains duplicate X values
B. Is also not a function because it doesn't pass the vertical line test, meaning there are duplicate x values
C. Is a function because if you were to graph this, there would be one and only one x value for every y value.
D. Is not a function because the positive-negative symbol indicates that there are two values, not one.

Hope this helped.