A population grows according to an exponential growth model. The initial population is
P
0
=
15
, and the growth rate is
r
=
0.3
.

Then:

P
1
=

P
2
=

Find an explicit formula for
P
n
. Your formula should involve
n
.

P
n
=

Use your formula to find
P
9

P
9
=

Give all answers accurate to at least one decimal place

The number of members f(x) in a local swimming club increased by 30% every year over a period of x years. the function below shows the relationship between f(x) and x: f(x) = 10(1.3)xwhich of the following graphs best represents the function? graph of f of x equals 1.3 multiplied by 10 to the power of x graph of exponential function going up from left to right in quadrant 1 through the point 0, 0 and continuing towards infinity graph of f of x equals 10 multiplied by 1.3 to the power of x graph of f of x equals 1.3 to the power of x