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.

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!