Parent functions are the most basic, or "simplest" form of a given function with no transformations placed upon them.
For example, y=4x^2+2x+5
is a quadratic function. The parent is:
y=x^2
The inverse graph is the graph that results from switching the (x,y) coordinates of the function. Inverse graphs are graphs the are reflections across the y= x line.
The graphs above are inverses of each other.
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