Which exponential functions represent exponential decay?

Select all that apply.

f(x)=0.25(1.5)3x

f(x)=(0.85)x

f(x)=(1.01)x

f(x)=1.8(0.6)x

f(x)=(0.95)2x-*

The function representing exponential decay are:

b)  

d)  

e)

Step-by-step explanation:

The exponential function is given as:

where , , and .

If and then the function represents exponential decay.

If   and then the function represents exponential growth.

Thus, we can check each function given.

a)

For the given function and . So, it represents exponential growth.

b)  

For the given function and . So, it represents exponential decay.

c)  

For the given function and . So, it represents exponential growth.

d)  

For the given function and . . So, it represents exponential decay.

e)

For the given function and . . So, it represents exponential decay.

location: point 0

step-by-step explanation:

well, -8 to 10 on a number line is 18 spaces.

1/9 of 18 is 2.

so, 4/9 of 18 must be 8.

8 spaces from -8 (a) is 0.

so, 4/9 of the way from -8 to 10 is 0!