Question: In linear regression, when might it be appropriate to use basis functions to transform input features? Group of answer choices When the relationship between the

In linear regression, when might it be appropriate to use basis functions to transform input features?
Group of answer choices
When the relationship between the input features and the output is known to be linear.
When the input features exhibit a complex, nonlinear relationship with the output.
Never
Basis functions are always necessary for linear regression.

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