Which of these statements is true for f(x)=(1/2)^x ? a. it is always increasing. b. the domain of f(x) is x > 0. c. the y-intercept is (0, 1). d. the range of f(x) is y> 1/2 .

C

Step-by-step explanation:

We are given that a function

It can be write as

Taking log on both sides

Differentiate w.r.t x

for all x

When f'(x) <0 then function is decreasing.

Hence, given function is decreasing function.

Substitute x=0 then we get

Because ()

Therefore, y intercept is (0,1).

Domain pf function f(x)=R

Range of given function :()

Hence, option C is true.

depending on others is critical to survival. my source is apex!

step-by-step explanation:

b is the correct answer