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)= (3)/(3) +12 \\ y_(o)=12 \\ \\ y_(e)= (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)}`