Over which interval is the graph of the parent absolute value function f of x is equal to absolute value of x decreasing?

For x values less than 0, f(x) = |x| = -x. As x increases toward 0, the function’s value decreases toward 0, so the graph is decreasing on the interval from negative infinity to 0. The correct choice is “open paren negative infinity comma 0 close paren.”

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