Find the approximate change in z when the point 
changes from 
to 
. 
; from 
to 
Definitions:
Temperament Traits
Innate, biologically based behavioral and emotional characteristics that are evident from early life.
Ergs
Basic instinctual drives or primary motivational forces in some psychological theories; the term originates from the work of Sigmund Freud.
Personality Traits
Enduring characteristics or qualities that describe an individual's consistent behaviours and attitudes.
Stable Across Time
A characteristic or attribute that remains consistent and unchanged over a period.
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