Rebecca has 30 paintings to sell. The amount of money Rebecca makes from selling x paintings is represented by a function.

f(x) = 25x

What is the practical domain of the function if Rebecca sells 30 paintings?

A. All integers from 0 to 25, inclusive

B. All integers from 0 to 30, inclusive

C. All multiples of 25 between 0 and 750, inclusive

D. All real numbers

Question

Rebecca has 30 paintings to sell. The amount of money Rebecca makes from selling x paintings is represented by a function.

 

  f(x) = 25x

 

What is the practical domain of the function if Rebecca sells 30 paintings?

A. All integers from 0 to 25, inclusive

B. All integers from 0 to 30, inclusive

C. All multiples of 25 between 0 and 750, inclusive

D. All real numbers

mathmale · Answer

Think:  Which values can the variable x have?  Which values can it NOT have?  Answering this question correctly will help your understanding.