Need help!! Suzan has a $30 credit on an online music site. for each MP3 she downloads , $1 is subtracted from her credit. The function f(x)=30-x models the amount of credit remaining after x downloads.

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Icewind asked Jan 24, 2022

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Need help!!

Suzan has a $30 credit on an online music site. for each MP3 she downloads , $1 is subtracted from her credit. The function f(x)=30-x models the amount of credit remaining after x downloads. What would be a reasonable domain and range for this function?

Mathematics
college

Icewind asked Jan 24, 2022

by Icewind

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21 votes

Answer:

Domain:

$x \geqslant 0 \: and \: x \leqslant 30$

Range:

$y \leqslant 30$

Seyet answered Jan 28, 2022

by Seyet

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