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Practical Domain and Range Let the function M(t) = 15t represent the distance in miles that you would travel bicycling t hour

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Answer #1

M(t)=15t

First let's find domain

He cannot bike for more than 12 hours

So maximum value of t is 12

As well as if we think practically

What is minimum time possible

It is 0

Because time cannot be negative

Hence domain is

[0,12]. Or we can say . 0=<t=<12

Where as range can be easily find out

Range is maximum and minimum value of M(t)

For t in the domain [0,12]

When t=0

M(0)=15t= 15*0

M(0)=0

While when t=12

M(12)=15*12

M(12)=180

Hence range is

[0,180]

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