Haley pays a monthly fee of $20 for her cell phone and then pays 5 cents per minute used. the cost of haley’s cell phone bill can be expressed by the function c(m) = 0.05m + 20, where m is the number of minutes used. what are the domain and range of the function c(m)?

Domain =

Range =

Step-by-step explanation:

We are given,

The cost of the phone bill is represented by the function,

, where m = number of minutes used.

Now, as 'm' is the number of minutes used. So, they cannot be negative.

Thus, the domain of the function is .

Further, when m= 0, then i.e. C(0)= 20.

Thus, the range of the function is .

step-by-step explanation:

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