# What is the domain and range of the function f(t)=7.2t models the average distance f(t) in kilometers that BOB rides his bike over time ,t, in hours?

##### 1 Answer

Oct 8, 2015

Domain and range are

#### Explanation:

Generally, since for every real

However if it is to be a model of a physical process the domain and range could be limited.

The domain of the function as a model of a process would be

The same limitations could be applied to the range. This can be explained in 2 ways:

1) If

2) You could also give the same reason as in case of the domain. The distance travelled cannot be negative.