Answer:
Part a) Is a growth function
Part b) The function's percent rate of change is 160%
Step-by-step explanation:
we have
[tex]f(x)=0.3(2.6^x)[/tex]
This is a exponential function of the form
[tex]f(x)=a(b^x)[/tex]
where
a is the initial value or y-intercept
b is the base of the exponential function
If b> 1---> we have a growth function
if b< 1---> is a decay function
r is the percent rate of change
b=(1+r)
In this problem we have
[tex]a=0.3[/tex]
[tex]b=2.6[/tex]
The value of b >1
so
Is a growth function
Find the value of r
[tex]r=b-1=2.6-1=1.6[/tex]
convert to percentage
[tex]r=1.6*100=160\%[/tex]