Question

What is the multiplicative rate of change of the function described in the table ?

Answer 1

Domain:

We know that domain is all possible values of x for which any function exists

or all possible values of x for which curve  is defined

we can see that curve extended from left to right side

so, domain is all real numbers

Range:

We know that domain is all possible values of y for which x is defined

or all possible values of y for which curve  is defined

we can see that lowest y-value is 0

and upper most value is inf

so, range is $y>0$

so, option-D.............Answer

Answer 2

I wouldn't choose the first answer.  Look at the graph; you can see that the curve never touches or crosses the x-axis; thus, the range is y>0.  The domain is the set of all real numbers; they need not be integers.