Compare the function with the parent function. without graphing, what are the vertex, axis of symmetry, and transformation of the given function? y=|10x-2|-7

The parent function is the simplest version of a member of a family of functions. 
In this case, the parent function y= |x|
y= |10x-2| - 7
The vertex will be 2/10, -7, or (1/5,-7)

The axis of symmetry will be x= 1/5

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