linear function
domain
If the common ratio is negative then the points are alternately positive and negative. While their absolute values will lie on an exponential curve, an oscillating sequence will not lie on such a curve,
Calculating Geometric Means with Negative Values: http://www.buzzardsbay.org/geomean.htm#negative_values
i think you are missing the word point in the question, and if so, then yes. the domain of a function describes what you can put into it, and since your putting x values into the function, if there is a point that exists at a certain x value, then that x is included in the domain.
linear function
y = a*r^n where a and r are non-zero constants, and n is a counter.
Domain describes all possible input values.
The range of the function.
The range of a function is the set of all possible input values.
domain
Domain
The codomain or range.
Without the actual function we cannot help you very much.
It is called the range of the function.
it is called as co-domain
RANGE -----> apex