Which intervals show ) decreasing? Check all that apply
D25,-2)
D2-15]
OH1)
O(15,21
O12.2.5)
(25.3)

A function f is increasing on an interval if for every x1, x2; x1  x2, f(x1)  f(x2). A function f is decreasing on an interval.

If for every x1, x2; x1  x2, f(x2)  f(x1).

So, here for intervals  [–2.5, –2] and [1.5, 2] f(x) is increasing while for [–2, –1.5] and [2, 2.5] it is decreasing.

Step-by-step explanation:

A function f is increasing on an interval if for every x1, x2; x1  x2, f(x1)  f(x2). A function f is decreasing on an interval.

If for every x1, x2; x1  x2, f(x2)  f(x1).

So, here for intervals  [–2.5, –2] and [1.5, 2] f(x) is increasing while for [–2, –1.5] and [2, 2.5] it is decreasing.