Question

Over which interval is the graph of the parent absolute value function f(x)=|x| decreasing?

(–∞, ∞)
(–∞, 0)
(–6, 0)
(0, ∞)

Answer 1

B

Explanation:

Edge 2022

Answer 2

(–∞, 0)

Explanation:

The graph of the absolute value parent function f(x) = |x| is shown in the attached diagram.

We can clearly see that from -∞ to 0, the function is decreasing and from 0 to +∞, it is increasing. This is the basic, parent absolute value function.

THe questions asks, when is it decreasing, so clearly, it is from -∞ to 0.

This is the answer.