Answer:
The value of k=1
So, Maura claim is incorrect. The value of k=1 and not k=1/2
Step-by-step explanation:
We need to determine the value of k if 
We are given:

Exponent rule, if bases are equal the exponents are equal
We can write 

Now since the base is same, i,e 2 so, the exponents will be same

So, the value of k=1
So, Maura claim is incorrect. The value of k=1 and not k=1/2