Change means difference in the state or condition of a thing and here the thing is number. The change made within them must be following some certain rules or patterns.
They can be uniform and here it is uniform for sure. The terms are increasing by 2 or we can say that for getting th next number, we need to add 2 with the previous.
- 3 + 2 = 5
- 5 + 2 = 7
- 7 + 2 = 9
So, the rate of change for the above numbers or number series is +2 or addition of 2
Carry On Learning !