# 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?

Domain and range are

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

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

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Domain: All real numbers (t belongs to the set of real numbers). Range: All real numbers greater than or equal to 0 (f(t) is non-negative, representing distances).

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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