Given : A social media website has currently = 1,000 members.
In each month number of members gets triple.
To find: Equation that represents number of members m belongs to site.
Solution: Because we are given, each month the number of members gets triple, that means each month we can multiply by 3 to the number of members of previous month.
For first month, we would multiply 1,000 by 3.
For second month, we would multiply 1,000 by 3 *3.
For second month, we would multiply 1,000 by 3*3*3.
Each month one factor of 3 is being increasing.
We could write those 3's as exponents of 3.
Like
![1000*3 = 1000*3^1](https://img.qammunity.org/2019/formulas/mathematics/middle-school/mpolvky2amckhn9lc5lojowthu7op4wu6a.png)
![1000 * 3^2.](https://img.qammunity.org/2019/formulas/mathematics/middle-school/6gup7e9nc42ugraofdujzlwt611svxl1ag.png)
![1000 * 3^3.](https://img.qammunity.org/2019/formulas/mathematics/middle-school/7vk6ow53ent5t3a105s9l1rr9tjpnqcvce.png)
As many months as many 3's are there.
So, the exponent of 3 is represnts the number of months.
Let us take a variable for number of month by n.
So, we could setup an equation for number of members m belongs to site on a particular month n as
![m= 1000 (3)^n](https://img.qammunity.org/2019/formulas/mathematics/middle-school/vrusau5ch41wcwwg91ub7wdt179dvfnitu.png)
This is our final equation.