Question

PLEASE HELP! A campground rents bicycles by the hour. The total cost y to rent a bicycle, including deposit, is presented by the function y=1/3x+12. The graph of this function is below.
What do the domain and range of the function represent in this situation?

Answer 1

     The domain and the range of the function are all possible values of the x and y, respectively,  that function can take.
     The range is given by:

$y_{o}= \frac{3}{3} +12 \\ y_{o}=12 \\ \\ y_{e}= \frac{27}{3} +12 \\ y_{e}=21 \\ \\ \boxed {Im=(y\in R \mid 12\leq y \leq 21)}$
 
     The domain is given by:

$\boxed {D=(x\in R \mid 3\leq y \leq 27)}$