Answer: y = x is the parent function of y = 7.72x - 29.02
Step-by-step explanation:
The parent function is the simplest function of a family of functions that mantains the definition (or shape) of the entire family.
For example the parent function for the linear functions, i.e. y = mx + b, is y = x.
That is because the graph of the given function can be found by simple transformations of the parent function: translations and scaling.
Given that the function is y = 7.72x - 29.02, the parent function is y = x.
Note that the graph of y = 7.72 x is the same graph y = x scaled by the factor 7.72 and shifted 29.02 units downward.