# Population growth in 7 years

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Ydd97 on 15 Nov 2019
Commented: Hend Nasrallah on 24 Jun 2021
Hi,
I want to make a graph that will calculate how the population will change in 7 years in a spesific country. Say in 2018 there is approximately 5 million people in a country, and the growth rate is 0.63%. What will the approximated population be in 2025? Is there anyone that can help me code this.
I have already calculated this using expontential euqation:
y= a(1+r)^t
P = 5(1.0063)^7
P = 5.22 million

Fabio Freschi on 15 Nov 2019
% rate
r = 0.0063;
% years
t = 7;
% initial population
a = 5e6;
% population
y = a*(1+r)^t
Hend Nasrallah on 24 Jun 2021
Hi i tried doing this question but the figure is not showing anything, it just giving me blank figure can I know what is the problem with the command ?

Fabio Freschi on 24 Jun 2021
Below you can find the output of the following code
% rate
r = 0.0063;
% years
t = 7;
% initial population
a = 5e6;
t = 1:7;
y = a*(1+r).^t;
figure,plot(t,y); Hend Nasrallah on 24 Jun 2021
thank you, but i have question if we want to plot years for example from 2018 to 2025 how can we plot it using the same question and for loop.