8 1/2 - 6 1/4 please subtract
2 answers:
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Answer:
initial value is 15
growth factor is 1.25
Step-by-step explanation:
we are given
The number of members f(x) in Joe's health club
increased by 25% every year over a period of x years
The function below shows the relationship between f(x) and x as
now, we can compare it with exponential function
where
a is the initial value
b is growth factor
we can compare and find 'a' and 'b'
So,
initial value is 15
growth factor is 1.25
we know that
x is time
so, it can never be negative
f(x) is number of chambers
so, f(x) can not be negative
now, we can draw graph
and we get as
