Below is a graph of exponential functions label i though vi.

option-C

Step-by-step explanation:

We are given

graphs -- I , V , VI have same starting point

it means that it has same initial values

Suppose, we are given exponential function as

Here , 'a' is initial value

we can see that initial value of graph-I is 30

so, all other graphs must also have 30 initial value

so, graphs

 have same initial value =30

so, option-C.......Answer