4. exercise 3, section 5.7. use iteration to guess an explicit formula for the recursive sequence below and then prove your answer using mathematical induction. ak=k*ak-1, for k> =1 and a0=1.

The correct option is 4. The domain of the function are all real numbers greater than or equal to –3.

Step-by-step explanation:

Domain is the set of all possible inputs or x-values, for which the given function is defined.

The given graph is defined form -3 to positive infinity. The point -3 included in the set of input because there is a closed circle at x=-3.

So, domain of the function are all real numbers greater than or equal to –3.

Therefore the correct option is 4.