The given function is _s(x) = −1 + 3|x − 1|_. The parent function is _f(x) = |x|_, which is the absolute value function.
Step 2: Locate the graph of the parent function
The absolute value function's graph has a distinctive "V" shape. Among the provided options, the first graph (top-left corner) represents the absolute value function _f(x) = |x|_.